{
 "object": "backup-rings-as568-parker-8-xxx",
 "license": "CC BY 4.0, Xem Studio",
 "files": [
  {
   "name": "backup-ring-8-004",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-004.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-004.stl",
   "note": "Parker 8-004 backup ring envelope (uncut): ID 0.096 in (2.44 mm), OD 0.202 in (5.13 mm), thickness 0.049 in (1.24 mm); for the AS568 -004 O-ring"
  },
  {
   "name": "backup-ring-8-005",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-005.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-005.stl",
   "note": "Parker 8-005 backup ring envelope (uncut): ID 0.127 in (3.23 mm), OD 0.233 in (5.92 mm), thickness 0.049 in (1.24 mm); for the AS568 -005 O-ring"
  },
  {
   "name": "backup-ring-8-006",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-006.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-006.stl",
   "note": "Parker 8-006 backup ring envelope (uncut): ID 0.140 in (3.56 mm), OD 0.246 in (6.25 mm), thickness 0.049 in (1.24 mm); for the AS568 -006 O-ring"
  },
  {
   "name": "backup-ring-8-007",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-007.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-007.stl",
   "note": "Parker 8-007 backup ring envelope (uncut): ID 0.171 in (4.34 mm), OD 0.277 in (7.04 mm), thickness 0.049 in (1.24 mm); for the AS568 -007 O-ring"
  },
  {
   "name": "backup-ring-8-008",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-008.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-008.stl",
   "note": "Parker 8-008 backup ring envelope (uncut): ID 0.202 in (5.13 mm), OD 0.308 in (7.82 mm), thickness 0.049 in (1.24 mm); for the AS568 -008 O-ring"
  },
  {
   "name": "backup-ring-8-009",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-009.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-009.stl",
   "note": "Parker 8-009 backup ring envelope (uncut): ID 0.234 in (5.94 mm), OD 0.340 in (8.64 mm), thickness 0.049 in (1.24 mm); for the AS568 -009 O-ring"
  },
  {
   "name": "backup-ring-8-010",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-010.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-010.stl",
   "note": "Parker 8-010 backup ring envelope (uncut): ID 0.265 in (6.73 mm), OD 0.371 in (9.42 mm), thickness 0.049 in (1.24 mm); for the AS568 -010 O-ring"
  },
  {
   "name": "backup-ring-8-011",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-011.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-011.stl",
   "note": "Parker 8-011 backup ring envelope (uncut): ID 0.327 in (8.31 mm), OD 0.433 in (11.00 mm), thickness 0.049 in (1.24 mm); for the AS568 -011 O-ring"
  },
  {
   "name": "backup-ring-8-012",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-012.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-012.stl",
   "note": "Parker 8-012 backup ring envelope (uncut): ID 0.390 in (9.91 mm), OD 0.496 in (12.60 mm), thickness 0.049 in (1.24 mm); for the AS568 -012 O-ring"
  },
  {
   "name": "backup-ring-8-013",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-013.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-013.stl",
   "note": "Parker 8-013 backup ring envelope (uncut): ID 0.455 in (11.56 mm), OD 0.561 in (14.25 mm), thickness 0.049 in (1.24 mm); for the AS568 -013 O-ring"
  },
  {
   "name": "backup-ring-8-014",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-014.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-014.stl",
   "note": "Parker 8-014 backup ring envelope (uncut): ID 0.518 in (13.16 mm), OD 0.624 in (15.85 mm), thickness 0.049 in (1.24 mm); for the AS568 -014 O-ring"
  },
  {
   "name": "backup-ring-8-015",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-015.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-015.stl",
   "note": "Parker 8-015 backup ring envelope (uncut): ID 0.580 in (14.73 mm), OD 0.686 in (17.42 mm), thickness 0.049 in (1.24 mm); for the AS568 -015 O-ring"
  },
  {
   "name": "backup-ring-8-016",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-016.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-016.stl",
   "note": "Parker 8-016 backup ring envelope (uncut): ID 0.643 in (16.33 mm), OD 0.749 in (19.02 mm), thickness 0.049 in (1.24 mm); for the AS568 -016 O-ring"
  },
  {
   "name": "backup-ring-8-017",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-017.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-017.stl",
   "note": "Parker 8-017 backup ring envelope (uncut): ID 0.705 in (17.91 mm), OD 0.811 in (20.60 mm), thickness 0.049 in (1.24 mm); for the AS568 -017 O-ring"
  },
  {
   "name": "backup-ring-8-018",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-018.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-018.stl",
   "note": "Parker 8-018 backup ring envelope (uncut): ID 0.768 in (19.51 mm), OD 0.874 in (22.20 mm), thickness 0.049 in (1.24 mm); for the AS568 -018 O-ring"
  },
  {
   "name": "backup-ring-8-019",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-019.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-019.stl",
   "note": "Parker 8-019 backup ring envelope (uncut): ID 0.830 in (21.08 mm), OD 0.936 in (23.77 mm), thickness 0.049 in (1.24 mm); for the AS568 -019 O-ring"
  },
  {
   "name": "backup-ring-8-020",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-020.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-020.stl",
   "note": "Parker 8-020 backup ring envelope (uncut): ID 0.893 in (22.68 mm), OD 0.999 in (25.37 mm), thickness 0.049 in (1.24 mm); for the AS568 -020 O-ring"
  },
  {
   "name": "backup-ring-8-021",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-021.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-021.stl",
   "note": "Parker 8-021 backup ring envelope (uncut): ID 0.955 in (24.26 mm), OD 1.061 in (26.95 mm), thickness 0.049 in (1.24 mm); for the AS568 -021 O-ring"
  },
  {
   "name": "backup-ring-8-022",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-022.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-022.stl",
   "note": "Parker 8-022 backup ring envelope (uncut): ID 1.018 in (25.86 mm), OD 1.124 in (28.55 mm), thickness 0.049 in (1.24 mm); for the AS568 -022 O-ring"
  },
  {
   "name": "backup-ring-8-023",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-023.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-023.stl",
   "note": "Parker 8-023 backup ring envelope (uncut): ID 1.080 in (27.43 mm), OD 1.186 in (30.12 mm), thickness 0.049 in (1.24 mm); for the AS568 -023 O-ring"
  },
  {
   "name": "backup-ring-8-024",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-024.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-024.stl",
   "note": "Parker 8-024 backup ring envelope (uncut): ID 1.143 in (29.03 mm), OD 1.249 in (31.72 mm), thickness 0.049 in (1.24 mm); for the AS568 -024 O-ring"
  },
  {
   "name": "backup-ring-8-025",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-025.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-025.stl",
   "note": "Parker 8-025 backup ring envelope (uncut): ID 1.205 in (30.61 mm), OD 1.311 in (33.30 mm), thickness 0.049 in (1.24 mm); for the AS568 -025 O-ring"
  },
  {
   "name": "backup-ring-8-026",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-026.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-026.stl",
   "note": "Parker 8-026 backup ring envelope (uncut): ID 1.268 in (32.21 mm), OD 1.374 in (34.90 mm), thickness 0.049 in (1.24 mm); for the AS568 -026 O-ring"
  },
  {
   "name": "backup-ring-8-027",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-027.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-027.stl",
   "note": "Parker 8-027 backup ring envelope (uncut): ID 1.330 in (33.78 mm), OD 1.436 in (36.47 mm), thickness 0.049 in (1.24 mm); for the AS568 -027 O-ring"
  },
  {
   "name": "backup-ring-8-028",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-028.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-028.stl",
   "note": "Parker 8-028 backup ring envelope (uncut): ID 1.393 in (35.38 mm), OD 1.499 in (38.07 mm), thickness 0.049 in (1.24 mm); for the AS568 -028 O-ring"
  },
  {
   "name": "backup-ring-8-029",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-029.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-029.stl",
   "note": "Parker 8-029 backup ring envelope (uncut): ID 1.518 in (38.56 mm), OD 1.624 in (41.25 mm), thickness 0.049 in (1.24 mm); for the AS568 -029 O-ring"
  },
  {
   "name": "backup-ring-8-030",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-030.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-030.stl",
   "note": "Parker 8-030 backup ring envelope (uncut): ID 1.643 in (41.73 mm), OD 1.749 in (44.42 mm), thickness 0.049 in (1.24 mm); for the AS568 -030 O-ring"
  },
  {
   "name": "backup-ring-8-031",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-031.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-031.stl",
   "note": "Parker 8-031 backup ring envelope (uncut): ID 1.768 in (44.91 mm), OD 1.874 in (47.60 mm), thickness 0.049 in (1.24 mm); for the AS568 -031 O-ring"
  },
  {
   "name": "backup-ring-8-032",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-032.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-032.stl",
   "note": "Parker 8-032 backup ring envelope (uncut): ID 1.893 in (48.08 mm), OD 1.999 in (50.77 mm), thickness 0.049 in (1.24 mm); for the AS568 -032 O-ring"
  },
  {
   "name": "backup-ring-8-033",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-033.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-033.stl",
   "note": "Parker 8-033 backup ring envelope (uncut): ID 2.018 in (51.26 mm), OD 2.124 in (53.95 mm), thickness 0.049 in (1.24 mm); for the AS568 -033 O-ring"
  },
  {
   "name": "backup-ring-8-034",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-034.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-034.stl",
   "note": "Parker 8-034 backup ring envelope (uncut): ID 2.143 in (54.43 mm), OD 2.249 in (57.12 mm), thickness 0.049 in (1.24 mm); for the AS568 -034 O-ring"
  },
  {
   "name": "backup-ring-8-035",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-035.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-035.stl",
   "note": "Parker 8-035 backup ring envelope (uncut): ID 2.268 in (57.61 mm), OD 2.374 in (60.30 mm), thickness 0.049 in (1.24 mm); for the AS568 -035 O-ring"
  },
  {
   "name": "backup-ring-8-036",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-036.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-036.stl",
   "note": "Parker 8-036 backup ring envelope (uncut): ID 2.393 in (60.78 mm), OD 2.499 in (63.47 mm), thickness 0.049 in (1.24 mm); for the AS568 -036 O-ring"
  },
  {
   "name": "backup-ring-8-037",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-037.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-037.stl",
   "note": "Parker 8-037 backup ring envelope (uncut): ID 2.518 in (63.96 mm), OD 2.624 in (66.65 mm), thickness 0.049 in (1.24 mm); for the AS568 -037 O-ring"
  },
  {
   "name": "backup-ring-8-038",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-038.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-038.stl",
   "note": "Parker 8-038 backup ring envelope (uncut): ID 2.643 in (67.13 mm), OD 2.749 in (69.82 mm), thickness 0.049 in (1.24 mm); for the AS568 -038 O-ring"
  },
  {
   "name": "backup-ring-8-039",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-039.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-039.stl",
   "note": "Parker 8-039 backup ring envelope (uncut): ID 2.768 in (70.31 mm), OD 2.874 in (73.00 mm), thickness 0.049 in (1.24 mm); for the AS568 -039 O-ring"
  },
  {
   "name": "backup-ring-8-040",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-040.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-040.stl",
   "note": "Parker 8-040 backup ring envelope (uncut): ID 2.893 in (73.48 mm), OD 2.999 in (76.17 mm), thickness 0.049 in (1.24 mm); for the AS568 -040 O-ring"
  },
  {
   "name": "backup-ring-8-041",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-041.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-041.stl",
   "note": "Parker 8-041 backup ring envelope (uncut): ID 3.018 in (76.66 mm), OD 3.124 in (79.35 mm), thickness 0.049 in (1.24 mm); for the AS568 -041 O-ring"
  },
  {
   "name": "backup-ring-8-042",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-042.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-042.stl",
   "note": "Parker 8-042 backup ring envelope (uncut): ID 3.268 in (83.01 mm), OD 3.374 in (85.70 mm), thickness 0.049 in (1.24 mm); for the AS568 -042 O-ring"
  },
  {
   "name": "backup-ring-8-043",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-043.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-043.stl",
   "note": "Parker 8-043 backup ring envelope (uncut): ID 3.518 in (89.36 mm), OD 3.624 in (92.05 mm), thickness 0.049 in (1.24 mm); for the AS568 -043 O-ring"
  },
  {
   "name": "backup-ring-8-044",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-044.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-044.stl",
   "note": "Parker 8-044 backup ring envelope (uncut): ID 3.768 in (95.71 mm), OD 3.874 in (98.40 mm), thickness 0.049 in (1.24 mm); for the AS568 -044 O-ring"
  },
  {
   "name": "backup-ring-8-045",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-045.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-045.stl",
   "note": "Parker 8-045 backup ring envelope (uncut): ID 4.018 in (102.06 mm), OD 4.124 in (104.75 mm), thickness 0.049 in (1.24 mm); for the AS568 -045 O-ring"
  },
  {
   "name": "backup-ring-8-046",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-046.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-046.stl",
   "note": "Parker 8-046 backup ring envelope (uncut): ID 4.268 in (108.41 mm), OD 4.374 in (111.10 mm), thickness 0.049 in (1.24 mm); for the AS568 -046 O-ring"
  },
  {
   "name": "backup-ring-8-047",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-047.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-047.stl",
   "note": "Parker 8-047 backup ring envelope (uncut): ID 4.518 in (114.76 mm), OD 4.624 in (117.45 mm), thickness 0.049 in (1.24 mm); for the AS568 -047 O-ring"
  },
  {
   "name": "backup-ring-8-048",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-048.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-048.stl",
   "note": "Parker 8-048 backup ring envelope (uncut): ID 4.768 in (121.11 mm), OD 4.874 in (123.80 mm), thickness 0.049 in (1.24 mm); for the AS568 -048 O-ring"
  },
  {
   "name": "backup-ring-8-049",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-049.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-049.stl",
   "note": "Parker 8-049 backup ring envelope (uncut): ID 5.018 in (127.46 mm), OD 5.124 in (130.15 mm), thickness 0.049 in (1.24 mm); for the AS568 -049 O-ring"
  },
  {
   "name": "backup-ring-8-050",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-050.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-050.stl",
   "note": "Parker 8-050 backup ring envelope (uncut): ID 5.268 in (133.81 mm), OD 5.374 in (136.50 mm), thickness 0.049 in (1.24 mm); for the AS568 -050 O-ring"
  },
  {
   "name": "backup-ring-8-102",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-102.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-102.stl",
   "note": "Parker 8-102 backup ring envelope (uncut): ID 0.077 in (1.96 mm), OD 0.249 in (6.32 mm), thickness 0.053 in (1.35 mm); for the AS568 -102 O-ring"
  },
  {
   "name": "backup-ring-8-103",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-103.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-103.stl",
   "note": "Parker 8-103 backup ring envelope (uncut): ID 0.109 in (2.77 mm), OD 0.281 in (7.14 mm), thickness 0.053 in (1.35 mm); for the AS568 -103 O-ring"
  },
  {
   "name": "backup-ring-8-104",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-104.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-104.stl",
   "note": "Parker 8-104 backup ring envelope (uncut): ID 0.140 in (3.56 mm), OD 0.312 in (7.92 mm), thickness 0.053 in (1.35 mm); for the AS568 -104 O-ring"
  },
  {
   "name": "backup-ring-8-105",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-105.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-105.stl",
   "note": "Parker 8-105 backup ring envelope (uncut): ID 0.171 in (4.34 mm), OD 0.343 in (8.71 mm), thickness 0.053 in (1.35 mm); for the AS568 -105 O-ring"
  },
  {
   "name": "backup-ring-8-106",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-106.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-106.stl",
   "note": "Parker 8-106 backup ring envelope (uncut): ID 0.202 in (5.13 mm), OD 0.374 in (9.50 mm), thickness 0.053 in (1.35 mm); for the AS568 -106 O-ring"
  },
  {
   "name": "backup-ring-8-107",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-107.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-107.stl",
   "note": "Parker 8-107 backup ring envelope (uncut): ID 0.234 in (5.94 mm), OD 0.406 in (10.31 mm), thickness 0.053 in (1.35 mm); for the AS568 -107 O-ring"
  },
  {
   "name": "backup-ring-8-108",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-108.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-108.stl",
   "note": "Parker 8-108 backup ring envelope (uncut): ID 0.265 in (6.73 mm), OD 0.437 in (11.10 mm), thickness 0.053 in (1.35 mm); for the AS568 -108 O-ring"
  },
  {
   "name": "backup-ring-8-109",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-109.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-109.stl",
   "note": "Parker 8-109 backup ring envelope (uncut): ID 0.327 in (8.31 mm), OD 0.499 in (12.67 mm), thickness 0.053 in (1.35 mm); for the AS568 -109 O-ring"
  },
  {
   "name": "backup-ring-8-110",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-110.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-110.stl",
   "note": "Parker 8-110 backup ring envelope (uncut): ID 0.390 in (9.91 mm), OD 0.562 in (14.27 mm), thickness 0.053 in (1.35 mm); for the AS568 -110 O-ring"
  },
  {
   "name": "backup-ring-8-111",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-111.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-111.stl",
   "note": "Parker 8-111 backup ring envelope (uncut): ID 0.452 in (11.48 mm), OD 0.624 in (15.85 mm), thickness 0.053 in (1.35 mm); for the AS568 -111 O-ring"
  },
  {
   "name": "backup-ring-8-112",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-112.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-112.stl",
   "note": "Parker 8-112 backup ring envelope (uncut): ID 0.515 in (13.08 mm), OD 0.687 in (17.45 mm), thickness 0.053 in (1.35 mm); for the AS568 -112 O-ring"
  },
  {
   "name": "backup-ring-8-113",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-113.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-113.stl",
   "note": "Parker 8-113 backup ring envelope (uncut): ID 0.577 in (14.66 mm), OD 0.749 in (19.02 mm), thickness 0.053 in (1.35 mm); for the AS568 -113 O-ring"
  },
  {
   "name": "backup-ring-8-114",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-114.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-114.stl",
   "note": "Parker 8-114 backup ring envelope (uncut): ID 0.640 in (16.26 mm), OD 0.812 in (20.62 mm), thickness 0.053 in (1.35 mm); for the AS568 -114 O-ring"
  },
  {
   "name": "backup-ring-8-115",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-115.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-115.stl",
   "note": "Parker 8-115 backup ring envelope (uncut): ID 0.702 in (17.83 mm), OD 0.874 in (22.20 mm), thickness 0.053 in (1.35 mm); for the AS568 -115 O-ring"
  },
  {
   "name": "backup-ring-8-116",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-116.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-116.stl",
   "note": "Parker 8-116 backup ring envelope (uncut): ID 0.765 in (19.43 mm), OD 0.937 in (23.80 mm), thickness 0.053 in (1.35 mm); for the AS568 -116 O-ring"
  },
  {
   "name": "backup-ring-8-117",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-117.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-117.stl",
   "note": "Parker 8-117 backup ring envelope (uncut): ID 0.831 in (21.11 mm), OD 1.003 in (25.48 mm), thickness 0.053 in (1.35 mm); for the AS568 -117 O-ring"
  },
  {
   "name": "backup-ring-8-118",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-118.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-118.stl",
   "note": "Parker 8-118 backup ring envelope (uncut): ID 0.893 in (22.68 mm), OD 1.065 in (27.05 mm), thickness 0.053 in (1.35 mm); for the AS568 -118 O-ring"
  },
  {
   "name": "backup-ring-8-119",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-119.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-119.stl",
   "note": "Parker 8-119 backup ring envelope (uncut): ID 0.956 in (24.28 mm), OD 1.128 in (28.65 mm), thickness 0.053 in (1.35 mm); for the AS568 -119 O-ring"
  },
  {
   "name": "backup-ring-8-120",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-120.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-120.stl",
   "note": "Parker 8-120 backup ring envelope (uncut): ID 1.018 in (25.86 mm), OD 1.190 in (30.23 mm), thickness 0.053 in (1.35 mm); for the AS568 -120 O-ring"
  },
  {
   "name": "backup-ring-8-121",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-121.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-121.stl",
   "note": "Parker 8-121 backup ring envelope (uncut): ID 1.081 in (27.46 mm), OD 1.253 in (31.83 mm), thickness 0.053 in (1.35 mm); for the AS568 -121 O-ring"
  },
  {
   "name": "backup-ring-8-122",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-122.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-122.stl",
   "note": "Parker 8-122 backup ring envelope (uncut): ID 1.143 in (29.03 mm), OD 1.315 in (33.40 mm), thickness 0.053 in (1.35 mm); for the AS568 -122 O-ring"
  },
  {
   "name": "backup-ring-8-123",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-123.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-123.stl",
   "note": "Parker 8-123 backup ring envelope (uncut): ID 1.206 in (30.63 mm), OD 1.378 in (35.00 mm), thickness 0.053 in (1.35 mm); for the AS568 -123 O-ring"
  },
  {
   "name": "backup-ring-8-124",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-124.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-124.stl",
   "note": "Parker 8-124 backup ring envelope (uncut): ID 1.268 in (32.21 mm), OD 1.440 in (36.58 mm), thickness 0.053 in (1.35 mm); for the AS568 -124 O-ring"
  },
  {
   "name": "backup-ring-8-125",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-125.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-125.stl",
   "note": "Parker 8-125 backup ring envelope (uncut): ID 1.331 in (33.81 mm), OD 1.503 in (38.18 mm), thickness 0.053 in (1.35 mm); for the AS568 -125 O-ring"
  },
  {
   "name": "backup-ring-8-126",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-126.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-126.stl",
   "note": "Parker 8-126 backup ring envelope (uncut): ID 1.393 in (35.38 mm), OD 1.565 in (39.75 mm), thickness 0.053 in (1.35 mm); for the AS568 -126 O-ring"
  },
  {
   "name": "backup-ring-8-127",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-127.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-127.stl",
   "note": "Parker 8-127 backup ring envelope (uncut): ID 1.456 in (36.98 mm), OD 1.628 in (41.35 mm), thickness 0.053 in (1.35 mm); for the AS568 -127 O-ring"
  },
  {
   "name": "backup-ring-8-128",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-128.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-128.stl",
   "note": "Parker 8-128 backup ring envelope (uncut): ID 1.518 in (38.56 mm), OD 1.690 in (42.93 mm), thickness 0.053 in (1.35 mm); for the AS568 -128 O-ring"
  },
  {
   "name": "backup-ring-8-129",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-129.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-129.stl",
   "note": "Parker 8-129 backup ring envelope (uncut): ID 1.581 in (40.16 mm), OD 1.753 in (44.53 mm), thickness 0.053 in (1.35 mm); for the AS568 -129 O-ring"
  },
  {
   "name": "backup-ring-8-130",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-130.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-130.stl",
   "note": "Parker 8-130 backup ring envelope (uncut): ID 1.643 in (41.73 mm), OD 1.815 in (46.10 mm), thickness 0.053 in (1.35 mm); for the AS568 -130 O-ring"
  },
  {
   "name": "backup-ring-8-131",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-131.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-131.stl",
   "note": "Parker 8-131 backup ring envelope (uncut): ID 1.706 in (43.33 mm), OD 1.878 in (47.70 mm), thickness 0.053 in (1.35 mm); for the AS568 -131 O-ring"
  },
  {
   "name": "backup-ring-8-132",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-132.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-132.stl",
   "note": "Parker 8-132 backup ring envelope (uncut): ID 1.768 in (44.91 mm), OD 1.940 in (49.28 mm), thickness 0.053 in (1.35 mm); for the AS568 -132 O-ring"
  },
  {
   "name": "backup-ring-8-133",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-133.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-133.stl",
   "note": "Parker 8-133 backup ring envelope (uncut): ID 1.831 in (46.51 mm), OD 2.003 in (50.88 mm), thickness 0.053 in (1.35 mm); for the AS568 -133 O-ring"
  },
  {
   "name": "backup-ring-8-134",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-134.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-134.stl",
   "note": "Parker 8-134 backup ring envelope (uncut): ID 1.893 in (48.08 mm), OD 2.065 in (52.45 mm), thickness 0.053 in (1.35 mm); for the AS568 -134 O-ring"
  },
  {
   "name": "backup-ring-8-135",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-135.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-135.stl",
   "note": "Parker 8-135 backup ring envelope (uncut): ID 1.956 in (49.68 mm), OD 2.128 in (54.05 mm), thickness 0.053 in (1.35 mm); for the AS568 -135 O-ring"
  },
  {
   "name": "backup-ring-8-136",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-136.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-136.stl",
   "note": "Parker 8-136 backup ring envelope (uncut): ID 2.018 in (51.26 mm), OD 2.190 in (55.63 mm), thickness 0.053 in (1.35 mm); for the AS568 -136 O-ring"
  },
  {
   "name": "backup-ring-8-137",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-137.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-137.stl",
   "note": "Parker 8-137 backup ring envelope (uncut): ID 2.081 in (52.86 mm), OD 2.253 in (57.23 mm), thickness 0.053 in (1.35 mm); for the AS568 -137 O-ring"
  },
  {
   "name": "backup-ring-8-138",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-138.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-138.stl",
   "note": "Parker 8-138 backup ring envelope (uncut): ID 2.143 in (54.43 mm), OD 2.315 in (58.80 mm), thickness 0.053 in (1.35 mm); for the AS568 -138 O-ring"
  },
  {
   "name": "backup-ring-8-139",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-139.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-139.stl",
   "note": "Parker 8-139 backup ring envelope (uncut): ID 2.206 in (56.03 mm), OD 2.378 in (60.40 mm), thickness 0.053 in (1.35 mm); for the AS568 -139 O-ring"
  },
  {
   "name": "backup-ring-8-140",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-140.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-140.stl",
   "note": "Parker 8-140 backup ring envelope (uncut): ID 2.268 in (57.61 mm), OD 2.440 in (61.98 mm), thickness 0.053 in (1.35 mm); for the AS568 -140 O-ring"
  },
  {
   "name": "backup-ring-8-141",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-141.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-141.stl",
   "note": "Parker 8-141 backup ring envelope (uncut): ID 2.331 in (59.21 mm), OD 2.503 in (63.58 mm), thickness 0.053 in (1.35 mm); for the AS568 -141 O-ring"
  },
  {
   "name": "backup-ring-8-142",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-142.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-142.stl",
   "note": "Parker 8-142 backup ring envelope (uncut): ID 2.393 in (60.78 mm), OD 2.565 in (65.15 mm), thickness 0.053 in (1.35 mm); for the AS568 -142 O-ring"
  },
  {
   "name": "backup-ring-8-143",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-143.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-143.stl",
   "note": "Parker 8-143 backup ring envelope (uncut): ID 2.456 in (62.38 mm), OD 2.628 in (66.75 mm), thickness 0.053 in (1.35 mm); for the AS568 -143 O-ring"
  },
  {
   "name": "backup-ring-8-144",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-144.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-144.stl",
   "note": "Parker 8-144 backup ring envelope (uncut): ID 2.518 in (63.96 mm), OD 2.690 in (68.33 mm), thickness 0.053 in (1.35 mm); for the AS568 -144 O-ring"
  },
  {
   "name": "backup-ring-8-145",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-145.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-145.stl",
   "note": "Parker 8-145 backup ring envelope (uncut): ID 2.581 in (65.56 mm), OD 2.753 in (69.93 mm), thickness 0.053 in (1.35 mm); for the AS568 -145 O-ring"
  },
  {
   "name": "backup-ring-8-146",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-146.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-146.stl",
   "note": "Parker 8-146 backup ring envelope (uncut): ID 2.643 in (67.13 mm), OD 2.815 in (71.50 mm), thickness 0.053 in (1.35 mm); for the AS568 -146 O-ring"
  },
  {
   "name": "backup-ring-8-147",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-147.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-147.stl",
   "note": "Parker 8-147 backup ring envelope (uncut): ID 2.706 in (68.73 mm), OD 2.878 in (73.10 mm), thickness 0.053 in (1.35 mm); for the AS568 -147 O-ring"
  },
  {
   "name": "backup-ring-8-148",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-148.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-148.stl",
   "note": "Parker 8-148 backup ring envelope (uncut): ID 2.768 in (70.31 mm), OD 2.940 in (74.68 mm), thickness 0.053 in (1.35 mm); for the AS568 -148 O-ring"
  },
  {
   "name": "backup-ring-8-149",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-149.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-149.stl",
   "note": "Parker 8-149 backup ring envelope (uncut): ID 2.831 in (71.91 mm), OD 3.003 in (76.28 mm), thickness 0.053 in (1.35 mm); for the AS568 -149 O-ring"
  },
  {
   "name": "backup-ring-8-150",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-150.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-150.stl",
   "note": "Parker 8-150 backup ring envelope (uncut): ID 2.893 in (73.48 mm), OD 3.065 in (77.85 mm), thickness 0.053 in (1.35 mm); for the AS568 -150 O-ring"
  },
  {
   "name": "backup-ring-8-151",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-151.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-151.stl",
   "note": "Parker 8-151 backup ring envelope (uncut): ID 3.018 in (76.66 mm), OD 3.190 in (81.03 mm), thickness 0.053 in (1.35 mm); for the AS568 -151 O-ring"
  },
  {
   "name": "backup-ring-8-152",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-152.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-152.stl",
   "note": "Parker 8-152 backup ring envelope (uncut): ID 3.268 in (83.01 mm), OD 3.440 in (87.38 mm), thickness 0.053 in (1.35 mm); for the AS568 -152 O-ring"
  },
  {
   "name": "backup-ring-8-153",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-153.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-153.stl",
   "note": "Parker 8-153 backup ring envelope (uncut): ID 3.518 in (89.36 mm), OD 3.690 in (93.73 mm), thickness 0.053 in (1.35 mm); for the AS568 -153 O-ring"
  },
  {
   "name": "backup-ring-8-154",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-154.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-154.stl",
   "note": "Parker 8-154 backup ring envelope (uncut): ID 3.768 in (95.71 mm), OD 3.940 in (100.08 mm), thickness 0.053 in (1.35 mm); for the AS568 -154 O-ring"
  },
  {
   "name": "backup-ring-8-155",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-155.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-155.stl",
   "note": "Parker 8-155 backup ring envelope (uncut): ID 4.018 in (102.06 mm), OD 4.190 in (106.43 mm), thickness 0.053 in (1.35 mm); for the AS568 -155 O-ring"
  },
  {
   "name": "backup-ring-8-156",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-156.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-156.stl",
   "note": "Parker 8-156 backup ring envelope (uncut): ID 4.268 in (108.41 mm), OD 4.440 in (112.78 mm), thickness 0.053 in (1.35 mm); for the AS568 -156 O-ring"
  },
  {
   "name": "backup-ring-8-157",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-157.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-157.stl",
   "note": "Parker 8-157 backup ring envelope (uncut): ID 4.518 in (114.76 mm), OD 4.690 in (119.13 mm), thickness 0.053 in (1.35 mm); for the AS568 -157 O-ring"
  },
  {
   "name": "backup-ring-8-158",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-158.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-158.stl",
   "note": "Parker 8-158 backup ring envelope (uncut): ID 4.768 in (121.11 mm), OD 4.940 in (125.48 mm), thickness 0.053 in (1.35 mm); for the AS568 -158 O-ring"
  },
  {
   "name": "backup-ring-8-159",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-159.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-159.stl",
   "note": "Parker 8-159 backup ring envelope (uncut): ID 5.018 in (127.46 mm), OD 5.190 in (131.83 mm), thickness 0.053 in (1.35 mm); for the AS568 -159 O-ring"
  },
  {
   "name": "backup-ring-8-160",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-160.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-160.stl",
   "note": "Parker 8-160 backup ring envelope (uncut): ID 5.268 in (133.81 mm), OD 5.440 in (138.18 mm), thickness 0.053 in (1.35 mm); for the AS568 -160 O-ring"
  },
  {
   "name": "backup-ring-8-161",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-161.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-161.stl",
   "note": "Parker 8-161 backup ring envelope (uncut): ID 5.518 in (140.16 mm), OD 5.690 in (144.53 mm), thickness 0.053 in (1.35 mm); for the AS568 -161 O-ring"
  },
  {
   "name": "backup-ring-8-162",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-162.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-162.stl",
   "note": "Parker 8-162 backup ring envelope (uncut): ID 5.768 in (146.51 mm), OD 5.940 in (150.88 mm), thickness 0.053 in (1.35 mm); for the AS568 -162 O-ring"
  },
  {
   "name": "backup-ring-8-163",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-163.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-163.stl",
   "note": "Parker 8-163 backup ring envelope (uncut): ID 6.018 in (152.86 mm), OD 6.190 in (157.23 mm), thickness 0.053 in (1.35 mm); for the AS568 -163 O-ring"
  },
  {
   "name": "backup-ring-8-164",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-164.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-164.stl",
   "note": "Parker 8-164 backup ring envelope (uncut): ID 6.268 in (159.21 mm), OD 6.440 in (163.58 mm), thickness 0.053 in (1.35 mm); for the AS568 -164 O-ring"
  },
  {
   "name": "backup-ring-8-165",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-165.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-165.stl",
   "note": "Parker 8-165 backup ring envelope (uncut): ID 6.518 in (165.56 mm), OD 6.690 in (169.93 mm), thickness 0.053 in (1.35 mm); for the AS568 -165 O-ring"
  },
  {
   "name": "backup-ring-8-166",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-166.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-166.stl",
   "note": "Parker 8-166 backup ring envelope (uncut): ID 6.768 in (171.91 mm), OD 6.940 in (176.28 mm), thickness 0.053 in (1.35 mm); for the AS568 -166 O-ring"
  },
  {
   "name": "backup-ring-8-167",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-167.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-167.stl",
   "note": "Parker 8-167 backup ring envelope (uncut): ID 7.018 in (178.26 mm), OD 7.190 in (182.63 mm), thickness 0.053 in (1.35 mm); for the AS568 -167 O-ring"
  },
  {
   "name": "backup-ring-8-168",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-168.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-168.stl",
   "note": "Parker 8-168 backup ring envelope (uncut): ID 7.268 in (184.61 mm), OD 7.440 in (188.98 mm), thickness 0.053 in (1.35 mm); for the AS568 -168 O-ring"
  },
  {
   "name": "backup-ring-8-169",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-169.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-169.stl",
   "note": "Parker 8-169 backup ring envelope (uncut): ID 7.518 in (190.96 mm), OD 7.690 in (195.33 mm), thickness 0.053 in (1.35 mm); for the AS568 -169 O-ring"
  },
  {
   "name": "backup-ring-8-170",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-170.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-170.stl",
   "note": "Parker 8-170 backup ring envelope (uncut): ID 7.768 in (197.31 mm), OD 7.940 in (201.68 mm), thickness 0.053 in (1.35 mm); for the AS568 -170 O-ring"
  },
  {
   "name": "backup-ring-8-171",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-171.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-171.stl",
   "note": "Parker 8-171 backup ring envelope (uncut): ID 8.018 in (203.66 mm), OD 8.190 in (208.03 mm), thickness 0.053 in (1.35 mm); for the AS568 -171 O-ring"
  },
  {
   "name": "backup-ring-8-172",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-172.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-172.stl",
   "note": "Parker 8-172 backup ring envelope (uncut): ID 8.268 in (210.01 mm), OD 8.440 in (214.38 mm), thickness 0.053 in (1.35 mm); for the AS568 -172 O-ring"
  },
  {
   "name": "backup-ring-8-173",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-173.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-173.stl",
   "note": "Parker 8-173 backup ring envelope (uncut): ID 8.518 in (216.36 mm), OD 8.690 in (220.73 mm), thickness 0.053 in (1.35 mm); for the AS568 -173 O-ring"
  },
  {
   "name": "backup-ring-8-174",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-174.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-174.stl",
   "note": "Parker 8-174 backup ring envelope (uncut): ID 8.768 in (222.71 mm), OD 8.940 in (227.08 mm), thickness 0.053 in (1.35 mm); for the AS568 -174 O-ring"
  },
  {
   "name": "backup-ring-8-175",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-175.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-175.stl",
   "note": "Parker 8-175 backup ring envelope (uncut): ID 9.018 in (229.06 mm), OD 9.190 in (233.43 mm), thickness 0.053 in (1.35 mm); for the AS568 -175 O-ring"
  },
  {
   "name": "backup-ring-8-177",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-177.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-177.stl",
   "note": "Parker 8-177 backup ring envelope (uncut): ID 9.518 in (241.76 mm), OD 9.690 in (246.13 mm), thickness 0.053 in (1.35 mm); for the AS568 -177 O-ring"
  },
  {
   "name": "backup-ring-8-178",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-178.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-178.stl",
   "note": "Parker 8-178 backup ring envelope (uncut): ID 9.768 in (248.11 mm), OD 9.940 in (252.48 mm), thickness 0.053 in (1.35 mm); for the AS568 -178 O-ring"
  },
  {
   "name": "backup-ring-8-201",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-201.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-201.stl",
   "note": "Parker 8-201 backup ring envelope (uncut): ID 0.202 in (5.13 mm), OD 0.438 in (11.13 mm), thickness 0.050 in (1.27 mm); for the AS568 -201 O-ring"
  },
  {
   "name": "backup-ring-8-202",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-202.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-202.stl",
   "note": "Parker 8-202 backup ring envelope (uncut): ID 0.265 in (6.73 mm), OD 0.501 in (12.73 mm), thickness 0.050 in (1.27 mm); for the AS568 -202 O-ring"
  },
  {
   "name": "backup-ring-8-203",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-203.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-203.stl",
   "note": "Parker 8-203 backup ring envelope (uncut): ID 0.327 in (8.31 mm), OD 0.563 in (14.30 mm), thickness 0.050 in (1.27 mm); for the AS568 -203 O-ring"
  },
  {
   "name": "backup-ring-8-204",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-204.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-204.stl",
   "note": "Parker 8-204 backup ring envelope (uncut): ID 0.390 in (9.91 mm), OD 0.626 in (15.90 mm), thickness 0.050 in (1.27 mm); for the AS568 -204 O-ring"
  },
  {
   "name": "backup-ring-8-205",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-205.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-205.stl",
   "note": "Parker 8-205 backup ring envelope (uncut): ID 0.455 in (11.56 mm), OD 0.691 in (17.55 mm), thickness 0.050 in (1.27 mm); for the AS568 -205 O-ring"
  },
  {
   "name": "backup-ring-8-206",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-206.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-206.stl",
   "note": "Parker 8-206 backup ring envelope (uncut): ID 0.518 in (13.16 mm), OD 0.754 in (19.15 mm), thickness 0.050 in (1.27 mm); for the AS568 -206 O-ring"
  },
  {
   "name": "backup-ring-8-207",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-207.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-207.stl",
   "note": "Parker 8-207 backup ring envelope (uncut): ID 0.580 in (14.73 mm), OD 0.816 in (20.73 mm), thickness 0.050 in (1.27 mm); for the AS568 -207 O-ring"
  },
  {
   "name": "backup-ring-8-208",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-208.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-208.stl",
   "note": "Parker 8-208 backup ring envelope (uncut): ID 0.643 in (16.33 mm), OD 0.879 in (22.33 mm), thickness 0.050 in (1.27 mm); for the AS568 -208 O-ring"
  },
  {
   "name": "backup-ring-8-209",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-209.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-209.stl",
   "note": "Parker 8-209 backup ring envelope (uncut): ID 0.705 in (17.91 mm), OD 0.941 in (23.90 mm), thickness 0.050 in (1.27 mm); for the AS568 -209 O-ring"
  },
  {
   "name": "backup-ring-8-210",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-210.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-210.stl",
   "note": "Parker 8-210 backup ring envelope (uncut): ID 0.766 in (19.46 mm), OD 1.002 in (25.45 mm), thickness 0.050 in (1.27 mm); for the AS568 -210 O-ring"
  },
  {
   "name": "backup-ring-8-211",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-211.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-211.stl",
   "note": "Parker 8-211 backup ring envelope (uncut): ID 0.828 in (21.03 mm), OD 1.064 in (27.03 mm), thickness 0.050 in (1.27 mm); for the AS568 -211 O-ring"
  },
  {
   "name": "backup-ring-8-212",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-212.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-212.stl",
   "note": "Parker 8-212 backup ring envelope (uncut): ID 0.891 in (22.63 mm), OD 1.127 in (28.63 mm), thickness 0.050 in (1.27 mm); for the AS568 -212 O-ring"
  },
  {
   "name": "backup-ring-8-213",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-213.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-213.stl",
   "note": "Parker 8-213 backup ring envelope (uncut): ID 0.953 in (24.21 mm), OD 1.189 in (30.20 mm), thickness 0.050 in (1.27 mm); for the AS568 -213 O-ring"
  },
  {
   "name": "backup-ring-8-214",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-214.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-214.stl",
   "note": "Parker 8-214 backup ring envelope (uncut): ID 1.016 in (25.81 mm), OD 1.252 in (31.80 mm), thickness 0.050 in (1.27 mm); for the AS568 -214 O-ring"
  },
  {
   "name": "backup-ring-8-215",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-215.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-215.stl",
   "note": "Parker 8-215 backup ring envelope (uncut): ID 1.078 in (27.38 mm), OD 1.314 in (33.38 mm), thickness 0.050 in (1.27 mm); for the AS568 -215 O-ring"
  },
  {
   "name": "backup-ring-8-216",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-216.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-216.stl",
   "note": "Parker 8-216 backup ring envelope (uncut): ID 1.141 in (28.98 mm), OD 1.377 in (34.98 mm), thickness 0.050 in (1.27 mm); for the AS568 -216 O-ring"
  },
  {
   "name": "backup-ring-8-217",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-217.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-217.stl",
   "note": "Parker 8-217 backup ring envelope (uncut): ID 1.203 in (30.56 mm), OD 1.439 in (36.55 mm), thickness 0.050 in (1.27 mm); for the AS568 -217 O-ring"
  },
  {
   "name": "backup-ring-8-218",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-218.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-218.stl",
   "note": "Parker 8-218 backup ring envelope (uncut): ID 1.266 in (32.16 mm), OD 1.502 in (38.15 mm), thickness 0.050 in (1.27 mm); for the AS568 -218 O-ring"
  },
  {
   "name": "backup-ring-8-219",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-219.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-219.stl",
   "note": "Parker 8-219 backup ring envelope (uncut): ID 1.334 in (33.88 mm), OD 1.570 in (39.88 mm), thickness 0.050 in (1.27 mm); for the AS568 -219 O-ring"
  },
  {
   "name": "backup-ring-8-220",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-220.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-220.stl",
   "note": "Parker 8-220 backup ring envelope (uncut): ID 1.397 in (35.48 mm), OD 1.633 in (41.48 mm), thickness 0.050 in (1.27 mm); for the AS568 -220 O-ring"
  },
  {
   "name": "backup-ring-8-221",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-221.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-221.stl",
   "note": "Parker 8-221 backup ring envelope (uncut): ID 1.459 in (37.06 mm), OD 1.695 in (43.05 mm), thickness 0.050 in (1.27 mm); for the AS568 -221 O-ring"
  },
  {
   "name": "backup-ring-8-222",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-222.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-222.stl",
   "note": "Parker 8-222 backup ring envelope (uncut): ID 1.522 in (38.66 mm), OD 1.758 in (44.65 mm), thickness 0.050 in (1.27 mm); for the AS568 -222 O-ring"
  },
  {
   "name": "backup-ring-8-223",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-223.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-223.stl",
   "note": "Parker 8-223 backup ring envelope (uncut): ID 1.647 in (41.83 mm), OD 1.883 in (47.83 mm), thickness 0.050 in (1.27 mm); for the AS568 -223 O-ring"
  },
  {
   "name": "backup-ring-8-224",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-224.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-224.stl",
   "note": "Parker 8-224 backup ring envelope (uncut): ID 1.772 in (45.01 mm), OD 2.008 in (51.00 mm), thickness 0.050 in (1.27 mm); for the AS568 -224 O-ring"
  },
  {
   "name": "backup-ring-8-225",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-225.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-225.stl",
   "note": "Parker 8-225 backup ring envelope (uncut): ID 1.897 in (48.18 mm), OD 2.133 in (54.18 mm), thickness 0.050 in (1.27 mm); for the AS568 -225 O-ring"
  },
  {
   "name": "backup-ring-8-226",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-226.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-226.stl",
   "note": "Parker 8-226 backup ring envelope (uncut): ID 2.022 in (51.36 mm), OD 2.258 in (57.35 mm), thickness 0.050 in (1.27 mm); for the AS568 -226 O-ring"
  },
  {
   "name": "backup-ring-8-227",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-227.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-227.stl",
   "note": "Parker 8-227 backup ring envelope (uncut): ID 2.147 in (54.53 mm), OD 2.383 in (60.53 mm), thickness 0.050 in (1.27 mm); for the AS568 -227 O-ring"
  },
  {
   "name": "backup-ring-8-228",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-228.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-228.stl",
   "note": "Parker 8-228 backup ring envelope (uncut): ID 2.272 in (57.71 mm), OD 2.508 in (63.70 mm), thickness 0.050 in (1.27 mm); for the AS568 -228 O-ring"
  },
  {
   "name": "backup-ring-8-229",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-229.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-229.stl",
   "note": "Parker 8-229 backup ring envelope (uncut): ID 2.397 in (60.88 mm), OD 2.633 in (66.88 mm), thickness 0.050 in (1.27 mm); for the AS568 -229 O-ring"
  },
  {
   "name": "backup-ring-8-230",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-230.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-230.stl",
   "note": "Parker 8-230 backup ring envelope (uncut): ID 2.522 in (64.06 mm), OD 2.758 in (70.05 mm), thickness 0.050 in (1.27 mm); for the AS568 -230 O-ring"
  },
  {
   "name": "backup-ring-8-231",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-231.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-231.stl",
   "note": "Parker 8-231 backup ring envelope (uncut): ID 2.631 in (66.83 mm), OD 2.867 in (72.82 mm), thickness 0.050 in (1.27 mm); for the AS568 -231 O-ring"
  },
  {
   "name": "backup-ring-8-232",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-232.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-232.stl",
   "note": "Parker 8-232 backup ring envelope (uncut): ID 2.756 in (70.00 mm), OD 2.992 in (76.00 mm), thickness 0.050 in (1.27 mm); for the AS568 -232 O-ring"
  },
  {
   "name": "backup-ring-8-233",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-233.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-233.stl",
   "note": "Parker 8-233 backup ring envelope (uncut): ID 2.881 in (73.18 mm), OD 3.117 in (79.17 mm), thickness 0.050 in (1.27 mm); for the AS568 -233 O-ring"
  },
  {
   "name": "backup-ring-8-234",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-234.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-234.stl",
   "note": "Parker 8-234 backup ring envelope (uncut): ID 3.006 in (76.35 mm), OD 3.242 in (82.35 mm), thickness 0.050 in (1.27 mm); for the AS568 -234 O-ring"
  },
  {
   "name": "backup-ring-8-235",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-235.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-235.stl",
   "note": "Parker 8-235 backup ring envelope (uncut): ID 3.131 in (79.53 mm), OD 3.367 in (85.52 mm), thickness 0.050 in (1.27 mm); for the AS568 -235 O-ring"
  },
  {
   "name": "backup-ring-8-236",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-236.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-236.stl",
   "note": "Parker 8-236 backup ring envelope (uncut): ID 3.256 in (82.70 mm), OD 3.492 in (88.70 mm), thickness 0.050 in (1.27 mm); for the AS568 -236 O-ring"
  },
  {
   "name": "backup-ring-8-237",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-237.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-237.stl",
   "note": "Parker 8-237 backup ring envelope (uncut): ID 3.381 in (85.88 mm), OD 3.617 in (91.87 mm), thickness 0.050 in (1.27 mm); for the AS568 -237 O-ring"
  },
  {
   "name": "backup-ring-8-238",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-238.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-238.stl",
   "note": "Parker 8-238 backup ring envelope (uncut): ID 3.506 in (89.05 mm), OD 3.742 in (95.05 mm), thickness 0.050 in (1.27 mm); for the AS568 -238 O-ring"
  },
  {
   "name": "backup-ring-8-239",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-239.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-239.stl",
   "note": "Parker 8-239 backup ring envelope (uncut): ID 3.631 in (92.23 mm), OD 3.867 in (98.22 mm), thickness 0.050 in (1.27 mm); for the AS568 -239 O-ring"
  },
  {
   "name": "backup-ring-8-240",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-240.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-240.stl",
   "note": "Parker 8-240 backup ring envelope (uncut): ID 3.756 in (95.40 mm), OD 3.992 in (101.40 mm), thickness 0.050 in (1.27 mm); for the AS568 -240 O-ring"
  },
  {
   "name": "backup-ring-8-241",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-241.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-241.stl",
   "note": "Parker 8-241 backup ring envelope (uncut): ID 3.881 in (98.58 mm), OD 4.117 in (104.57 mm), thickness 0.050 in (1.27 mm); for the AS568 -241 O-ring"
  },
  {
   "name": "backup-ring-8-242",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-242.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-242.stl",
   "note": "Parker 8-242 backup ring envelope (uncut): ID 4.006 in (101.75 mm), OD 4.242 in (107.75 mm), thickness 0.050 in (1.27 mm); for the AS568 -242 O-ring"
  },
  {
   "name": "backup-ring-8-243",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-243.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-243.stl",
   "note": "Parker 8-243 backup ring envelope (uncut): ID 4.131 in (104.93 mm), OD 4.367 in (110.92 mm), thickness 0.050 in (1.27 mm); for the AS568 -243 O-ring"
  },
  {
   "name": "backup-ring-8-244",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-244.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-244.stl",
   "note": "Parker 8-244 backup ring envelope (uncut): ID 4.256 in (108.10 mm), OD 4.492 in (114.10 mm), thickness 0.050 in (1.27 mm); for the AS568 -244 O-ring"
  },
  {
   "name": "backup-ring-8-245",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-245.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-245.stl",
   "note": "Parker 8-245 backup ring envelope (uncut): ID 4.381 in (111.28 mm), OD 4.617 in (117.27 mm), thickness 0.050 in (1.27 mm); for the AS568 -245 O-ring"
  },
  {
   "name": "backup-ring-8-246",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-246.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-246.stl",
   "note": "Parker 8-246 backup ring envelope (uncut): ID 4.506 in (114.45 mm), OD 4.742 in (120.45 mm), thickness 0.050 in (1.27 mm); for the AS568 -246 O-ring"
  },
  {
   "name": "backup-ring-8-247",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-247.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-247.stl",
   "note": "Parker 8-247 backup ring envelope (uncut): ID 4.631 in (117.63 mm), OD 4.867 in (123.62 mm), thickness 0.050 in (1.27 mm); for the AS568 -247 O-ring"
  },
  {
   "name": "backup-ring-8-248",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-248.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-248.stl",
   "note": "Parker 8-248 backup ring envelope (uncut): ID 4.768 in (121.11 mm), OD 5.004 in (127.10 mm), thickness 0.050 in (1.27 mm); for the AS568 -248 O-ring"
  },
  {
   "name": "backup-ring-8-249",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-249.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-249.stl",
   "note": "Parker 8-249 backup ring envelope (uncut): ID 4.893 in (124.28 mm), OD 5.129 in (130.28 mm), thickness 0.050 in (1.27 mm); for the AS568 -249 O-ring"
  },
  {
   "name": "backup-ring-8-250",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-250.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-250.stl",
   "note": "Parker 8-250 backup ring envelope (uncut): ID 5.018 in (127.46 mm), OD 5.254 in (133.45 mm), thickness 0.050 in (1.27 mm); for the AS568 -250 O-ring"
  },
  {
   "name": "backup-ring-8-251",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-251.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-251.stl",
   "note": "Parker 8-251 backup ring envelope (uncut): ID 5.143 in (130.63 mm), OD 5.379 in (136.63 mm), thickness 0.050 in (1.27 mm); for the AS568 -251 O-ring"
  },
  {
   "name": "backup-ring-8-252",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-252.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-252.stl",
   "note": "Parker 8-252 backup ring envelope (uncut): ID 5.268 in (133.81 mm), OD 5.504 in (139.80 mm), thickness 0.050 in (1.27 mm); for the AS568 -252 O-ring"
  },
  {
   "name": "backup-ring-8-253",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-253.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-253.stl",
   "note": "Parker 8-253 backup ring envelope (uncut): ID 5.393 in (136.98 mm), OD 5.629 in (142.98 mm), thickness 0.050 in (1.27 mm); for the AS568 -253 O-ring"
  },
  {
   "name": "backup-ring-8-254",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-254.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-254.stl",
   "note": "Parker 8-254 backup ring envelope (uncut): ID 5.518 in (140.16 mm), OD 5.754 in (146.15 mm), thickness 0.050 in (1.27 mm); for the AS568 -254 O-ring"
  },
  {
   "name": "backup-ring-8-255",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-255.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-255.stl",
   "note": "Parker 8-255 backup ring envelope (uncut): ID 5.643 in (143.33 mm), OD 5.879 in (149.33 mm), thickness 0.050 in (1.27 mm); for the AS568 -255 O-ring"
  },
  {
   "name": "backup-ring-8-256",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-256.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-256.stl",
   "note": "Parker 8-256 backup ring envelope (uncut): ID 5.768 in (146.51 mm), OD 6.004 in (152.50 mm), thickness 0.050 in (1.27 mm); for the AS568 -256 O-ring"
  },
  {
   "name": "backup-ring-8-257",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-257.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-257.stl",
   "note": "Parker 8-257 backup ring envelope (uncut): ID 5.893 in (149.68 mm), OD 6.129 in (155.68 mm), thickness 0.050 in (1.27 mm); for the AS568 -257 O-ring"
  },
  {
   "name": "backup-ring-8-258",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-258.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-258.stl",
   "note": "Parker 8-258 backup ring envelope (uncut): ID 6.018 in (152.86 mm), OD 6.254 in (158.85 mm), thickness 0.050 in (1.27 mm); for the AS568 -258 O-ring"
  },
  {
   "name": "backup-ring-8-259",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-259.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-259.stl",
   "note": "Parker 8-259 backup ring envelope (uncut): ID 6.268 in (159.21 mm), OD 6.504 in (165.20 mm), thickness 0.050 in (1.27 mm); for the AS568 -259 O-ring"
  },
  {
   "name": "backup-ring-8-260",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-260.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-260.stl",
   "note": "Parker 8-260 backup ring envelope (uncut): ID 6.518 in (165.56 mm), OD 6.754 in (171.55 mm), thickness 0.050 in (1.27 mm); for the AS568 -260 O-ring"
  },
  {
   "name": "backup-ring-8-261",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-261.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-261.stl",
   "note": "Parker 8-261 backup ring envelope (uncut): ID 6.768 in (171.91 mm), OD 7.004 in (177.90 mm), thickness 0.050 in (1.27 mm); for the AS568 -261 O-ring"
  },
  {
   "name": "backup-ring-8-262",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-262.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-262.stl",
   "note": "Parker 8-262 backup ring envelope (uncut): ID 7.018 in (178.26 mm), OD 7.254 in (184.25 mm), thickness 0.050 in (1.27 mm); for the AS568 -262 O-ring"
  },
  {
   "name": "backup-ring-8-263",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-263.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-263.stl",
   "note": "Parker 8-263 backup ring envelope (uncut): ID 7.268 in (184.61 mm), OD 7.504 in (190.60 mm), thickness 0.050 in (1.27 mm); for the AS568 -263 O-ring"
  },
  {
   "name": "backup-ring-8-264",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-264.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-264.stl",
   "note": "Parker 8-264 backup ring envelope (uncut): ID 7.518 in (190.96 mm), OD 7.754 in (196.95 mm), thickness 0.050 in (1.27 mm); for the AS568 -264 O-ring"
  },
  {
   "name": "backup-ring-8-265",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-265.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-265.stl",
   "note": "Parker 8-265 backup ring envelope (uncut): ID 7.768 in (197.31 mm), OD 8.004 in (203.30 mm), thickness 0.050 in (1.27 mm); for the AS568 -265 O-ring"
  },
  {
   "name": "backup-ring-8-266",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-266.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-266.stl",
   "note": "Parker 8-266 backup ring envelope (uncut): ID 8.018 in (203.66 mm), OD 8.254 in (209.65 mm), thickness 0.050 in (1.27 mm); for the AS568 -266 O-ring"
  },
  {
   "name": "backup-ring-8-267",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-267.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-267.stl",
   "note": "Parker 8-267 backup ring envelope (uncut): ID 8.268 in (210.01 mm), OD 8.504 in (216.00 mm), thickness 0.050 in (1.27 mm); for the AS568 -267 O-ring"
  },
  {
   "name": "backup-ring-8-268",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-268.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-268.stl",
   "note": "Parker 8-268 backup ring envelope (uncut): ID 8.518 in (216.36 mm), OD 8.754 in (222.35 mm), thickness 0.050 in (1.27 mm); for the AS568 -268 O-ring"
  },
  {
   "name": "backup-ring-8-269",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-269.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-269.stl",
   "note": "Parker 8-269 backup ring envelope (uncut): ID 8.768 in (222.71 mm), OD 9.004 in (228.70 mm), thickness 0.050 in (1.27 mm); for the AS568 -269 O-ring"
  },
  {
   "name": "backup-ring-8-270",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-270.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-270.stl",
   "note": "Parker 8-270 backup ring envelope (uncut): ID 9.018 in (229.06 mm), OD 9.254 in (235.05 mm), thickness 0.050 in (1.27 mm); for the AS568 -270 O-ring"
  },
  {
   "name": "backup-ring-8-271",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-271.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-271.stl",
   "note": "Parker 8-271 backup ring envelope (uncut): ID 9.268 in (235.41 mm), OD 9.504 in (241.40 mm), thickness 0.050 in (1.27 mm); for the AS568 -271 O-ring"
  },
  {
   "name": "backup-ring-8-272",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-272.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-272.stl",
   "note": "Parker 8-272 backup ring envelope (uncut): ID 9.518 in (241.76 mm), OD 9.754 in (247.75 mm), thickness 0.050 in (1.27 mm); for the AS568 -272 O-ring"
  },
  {
   "name": "backup-ring-8-273",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-273.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-273.stl",
   "note": "Parker 8-273 backup ring envelope (uncut): ID 9.768 in (248.11 mm), OD 10.004 in (254.10 mm), thickness 0.050 in (1.27 mm); for the AS568 -273 O-ring"
  },
  {
   "name": "backup-ring-8-274",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-274.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-274.stl",
   "note": "Parker 8-274 backup ring envelope (uncut): ID 10.018 in (254.46 mm), OD 10.254 in (260.45 mm), thickness 0.050 in (1.27 mm); for the AS568 -274 O-ring"
  },
  {
   "name": "backup-ring-8-275",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-275.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-275.stl",
   "note": "Parker 8-275 backup ring envelope (uncut): ID 10.518 in (267.16 mm), OD 10.754 in (273.15 mm), thickness 0.050 in (1.27 mm); for the AS568 -275 O-ring"
  },
  {
   "name": "backup-ring-8-276",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-276.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-276.stl",
   "note": "Parker 8-276 backup ring envelope (uncut): ID 11.018 in (279.86 mm), OD 11.254 in (285.85 mm), thickness 0.050 in (1.27 mm); for the AS568 -276 O-ring"
  },
  {
   "name": "backup-ring-8-277",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-277.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-277.stl",
   "note": "Parker 8-277 backup ring envelope (uncut): ID 11.518 in (292.56 mm), OD 11.754 in (298.55 mm), thickness 0.050 in (1.27 mm); for the AS568 -277 O-ring"
  },
  {
   "name": "backup-ring-8-278",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-278.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-278.stl",
   "note": "Parker 8-278 backup ring envelope (uncut): ID 12.018 in (305.26 mm), OD 12.254 in (311.25 mm), thickness 0.050 in (1.27 mm); for the AS568 -278 O-ring"
  },
  {
   "name": "backup-ring-8-279",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-279.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-279.stl",
   "note": "Parker 8-279 backup ring envelope (uncut): ID 13.018 in (330.66 mm), OD 13.254 in (336.65 mm), thickness 0.050 in (1.27 mm); for the AS568 -279 O-ring"
  },
  {
   "name": "backup-ring-8-280",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-280.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-280.stl",
   "note": "Parker 8-280 backup ring envelope (uncut): ID 14.018 in (356.06 mm), OD 14.254 in (362.05 mm), thickness 0.050 in (1.27 mm); for the AS568 -280 O-ring"
  },
  {
   "name": "backup-ring-8-281",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-281.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-281.stl",
   "note": "Parker 8-281 backup ring envelope (uncut): ID 15.018 in (381.46 mm), OD 15.254 in (387.45 mm), thickness 0.050 in (1.27 mm); for the AS568 -281 O-ring"
  },
  {
   "name": "backup-ring-8-282",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-282.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-282.stl",
   "note": "Parker 8-282 backup ring envelope (uncut): ID 15.989 in (406.12 mm), OD 16.225 in (412.12 mm), thickness 0.050 in (1.27 mm); for the AS568 -282 O-ring"
  },
  {
   "name": "backup-ring-8-283",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-283.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-283.stl",
   "note": "Parker 8-283 backup ring envelope (uncut): ID 16.989 in (431.52 mm), OD 17.225 in (437.51 mm), thickness 0.050 in (1.27 mm); for the AS568 -283 O-ring"
  },
  {
   "name": "backup-ring-8-284",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-284.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-284.stl",
   "note": "Parker 8-284 backup ring envelope (uncut): ID 17.989 in (456.92 mm), OD 18.225 in (462.92 mm), thickness 0.050 in (1.27 mm); for the AS568 -284 O-ring"
  },
  {
   "name": "backup-ring-8-309",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-309.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-309.stl",
   "note": "Parker 8-309 backup ring envelope (uncut): ID 0.450 in (11.43 mm), OD 0.816 in (20.73 mm), thickness 0.076 in (1.93 mm); for the AS568 -309 O-ring"
  },
  {
   "name": "backup-ring-8-310",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-310.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-310.stl",
   "note": "Parker 8-310 backup ring envelope (uncut): ID 0.513 in (13.03 mm), OD 0.879 in (22.33 mm), thickness 0.076 in (1.93 mm); for the AS568 -310 O-ring"
  },
  {
   "name": "backup-ring-8-311",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-311.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-311.stl",
   "note": "Parker 8-311 backup ring envelope (uncut): ID 0.575 in (14.60 mm), OD 0.941 in (23.90 mm), thickness 0.076 in (1.93 mm); for the AS568 -311 O-ring"
  },
  {
   "name": "backup-ring-8-312",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-312.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-312.stl",
   "note": "Parker 8-312 backup ring envelope (uncut): ID 0.638 in (16.21 mm), OD 1.004 in (25.50 mm), thickness 0.076 in (1.93 mm); for the AS568 -312 O-ring"
  },
  {
   "name": "backup-ring-8-313",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-313.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-313.stl",
   "note": "Parker 8-313 backup ring envelope (uncut): ID 0.700 in (17.78 mm), OD 1.066 in (27.08 mm), thickness 0.076 in (1.93 mm); for the AS568 -313 O-ring"
  },
  {
   "name": "backup-ring-8-314",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-314.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-314.stl",
   "note": "Parker 8-314 backup ring envelope (uncut): ID 0.763 in (19.38 mm), OD 1.129 in (28.68 mm), thickness 0.076 in (1.93 mm); for the AS568 -314 O-ring"
  },
  {
   "name": "backup-ring-8-315",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-315.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-315.stl",
   "note": "Parker 8-315 backup ring envelope (uncut): ID 0.825 in (20.95 mm), OD 1.191 in (30.25 mm), thickness 0.076 in (1.93 mm); for the AS568 -315 O-ring"
  },
  {
   "name": "backup-ring-8-316",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-316.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-316.stl",
   "note": "Parker 8-316 backup ring envelope (uncut): ID 0.888 in (22.56 mm), OD 1.254 in (31.85 mm), thickness 0.076 in (1.93 mm); for the AS568 -316 O-ring"
  },
  {
   "name": "backup-ring-8-317",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-317.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-317.stl",
   "note": "Parker 8-317 backup ring envelope (uncut): ID 0.950 in (24.13 mm), OD 1.316 in (33.43 mm), thickness 0.076 in (1.93 mm); for the AS568 -317 O-ring"
  },
  {
   "name": "backup-ring-8-318",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-318.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-318.stl",
   "note": "Parker 8-318 backup ring envelope (uncut): ID 1.013 in (25.73 mm), OD 1.379 in (35.03 mm), thickness 0.076 in (1.93 mm); for the AS568 -318 O-ring"
  },
  {
   "name": "backup-ring-8-319",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-319.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-319.stl",
   "note": "Parker 8-319 backup ring envelope (uncut): ID 1.075 in (27.30 mm), OD 1.441 in (36.60 mm), thickness 0.076 in (1.93 mm); for the AS568 -319 O-ring"
  },
  {
   "name": "backup-ring-8-320",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-320.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-320.stl",
   "note": "Parker 8-320 backup ring envelope (uncut): ID 1.138 in (28.91 mm), OD 1.504 in (38.20 mm), thickness 0.076 in (1.93 mm); for the AS568 -320 O-ring"
  },
  {
   "name": "backup-ring-8-321",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-321.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-321.stl",
   "note": "Parker 8-321 backup ring envelope (uncut): ID 1.200 in (30.48 mm), OD 1.566 in (39.78 mm), thickness 0.076 in (1.93 mm); for the AS568 -321 O-ring"
  },
  {
   "name": "backup-ring-8-322",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-322.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-322.stl",
   "note": "Parker 8-322 backup ring envelope (uncut): ID 1.263 in (32.08 mm), OD 1.629 in (41.38 mm), thickness 0.076 in (1.93 mm); for the AS568 -322 O-ring"
  },
  {
   "name": "backup-ring-8-323",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-323.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-323.stl",
   "note": "Parker 8-323 backup ring envelope (uncut): ID 1.316 in (33.43 mm), OD 1.682 in (42.72 mm), thickness 0.076 in (1.93 mm); for the AS568 -323 O-ring"
  },
  {
   "name": "backup-ring-8-324",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-324.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-324.stl",
   "note": "Parker 8-324 backup ring envelope (uncut): ID 1.388 in (35.26 mm), OD 1.754 in (44.55 mm), thickness 0.076 in (1.93 mm); for the AS568 -324 O-ring"
  },
  {
   "name": "backup-ring-8-325",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-325.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-325.stl",
   "note": "Parker 8-325 backup ring envelope (uncut): ID 1.513 in (38.43 mm), OD 1.879 in (47.73 mm), thickness 0.076 in (1.93 mm); for the AS568 -325 O-ring"
  },
  {
   "name": "backup-ring-8-326",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-326.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-326.stl",
   "note": "Parker 8-326 backup ring envelope (uncut): ID 1.638 in (41.61 mm), OD 2.004 in (50.90 mm), thickness 0.076 in (1.93 mm); for the AS568 -326 O-ring"
  },
  {
   "name": "backup-ring-8-327",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-327.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-327.stl",
   "note": "Parker 8-327 backup ring envelope (uncut): ID 1.763 in (44.78 mm), OD 2.129 in (54.08 mm), thickness 0.076 in (1.93 mm); for the AS568 -327 O-ring"
  },
  {
   "name": "backup-ring-8-328",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-328.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-328.stl",
   "note": "Parker 8-328 backup ring envelope (uncut): ID 1.888 in (47.96 mm), OD 2.254 in (57.25 mm), thickness 0.076 in (1.93 mm); for the AS568 -328 O-ring"
  },
  {
   "name": "backup-ring-8-329",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-329.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-329.stl",
   "note": "Parker 8-329 backup ring envelope (uncut): ID 2.013 in (51.13 mm), OD 2.379 in (60.43 mm), thickness 0.076 in (1.93 mm); for the AS568 -329 O-ring"
  },
  {
   "name": "backup-ring-8-330",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-330.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-330.stl",
   "note": "Parker 8-330 backup ring envelope (uncut): ID 2.138 in (54.31 mm), OD 2.504 in (63.60 mm), thickness 0.076 in (1.93 mm); for the AS568 -330 O-ring"
  },
  {
   "name": "backup-ring-8-331",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-331.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-331.stl",
   "note": "Parker 8-331 backup ring envelope (uncut): ID 2.268 in (57.61 mm), OD 2.634 in (66.90 mm), thickness 0.076 in (1.93 mm); for the AS568 -331 O-ring"
  },
  {
   "name": "backup-ring-8-332",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-332.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-332.stl",
   "note": "Parker 8-332 backup ring envelope (uncut): ID 2.393 in (60.78 mm), OD 2.759 in (70.08 mm), thickness 0.076 in (1.93 mm); for the AS568 -332 O-ring"
  },
  {
   "name": "backup-ring-8-333",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-333.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-333.stl",
   "note": "Parker 8-333 backup ring envelope (uncut): ID 2.518 in (63.96 mm), OD 2.884 in (73.25 mm), thickness 0.076 in (1.93 mm); for the AS568 -333 O-ring"
  },
  {
   "name": "backup-ring-8-334",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-334.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-334.stl",
   "note": "Parker 8-334 backup ring envelope (uncut): ID 2.643 in (67.13 mm), OD 3.009 in (76.43 mm), thickness 0.076 in (1.93 mm); for the AS568 -334 O-ring"
  },
  {
   "name": "backup-ring-8-335",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-335.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-335.stl",
   "note": "Parker 8-335 backup ring envelope (uncut): ID 2.768 in (70.31 mm), OD 3.134 in (79.60 mm), thickness 0.076 in (1.93 mm); for the AS568 -335 O-ring"
  },
  {
   "name": "backup-ring-8-336",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-336.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-336.stl",
   "note": "Parker 8-336 backup ring envelope (uncut): ID 2.893 in (73.48 mm), OD 3.259 in (82.78 mm), thickness 0.076 in (1.93 mm); for the AS568 -336 O-ring"
  },
  {
   "name": "backup-ring-8-337",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-337.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-337.stl",
   "note": "Parker 8-337 backup ring envelope (uncut): ID 3.018 in (76.66 mm), OD 3.384 in (85.95 mm), thickness 0.076 in (1.93 mm); for the AS568 -337 O-ring"
  },
  {
   "name": "backup-ring-8-338",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-338.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-338.stl",
   "note": "Parker 8-338 backup ring envelope (uncut): ID 3.143 in (79.83 mm), OD 3.509 in (89.13 mm), thickness 0.076 in (1.93 mm); for the AS568 -338 O-ring"
  },
  {
   "name": "backup-ring-8-339",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-339.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-339.stl",
   "note": "Parker 8-339 backup ring envelope (uncut): ID 3.273 in (83.13 mm), OD 3.639 in (92.43 mm), thickness 0.076 in (1.93 mm); for the AS568 -339 O-ring"
  },
  {
   "name": "backup-ring-8-340",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-340.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-340.stl",
   "note": "Parker 8-340 backup ring envelope (uncut): ID 3.398 in (86.31 mm), OD 3.764 in (95.61 mm), thickness 0.076 in (1.93 mm); for the AS568 -340 O-ring"
  },
  {
   "name": "backup-ring-8-341",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-341.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-341.stl",
   "note": "Parker 8-341 backup ring envelope (uncut): ID 3.523 in (89.48 mm), OD 3.889 in (98.78 mm), thickness 0.076 in (1.93 mm); for the AS568 -341 O-ring"
  },
  {
   "name": "backup-ring-8-342",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-342.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-342.stl",
   "note": "Parker 8-342 backup ring envelope (uncut): ID 3.648 in (92.66 mm), OD 4.014 in (101.96 mm), thickness 0.076 in (1.93 mm); for the AS568 -342 O-ring"
  },
  {
   "name": "backup-ring-8-343",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-343.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-343.stl",
   "note": "Parker 8-343 backup ring envelope (uncut): ID 3.773 in (95.83 mm), OD 4.139 in (105.13 mm), thickness 0.076 in (1.93 mm); for the AS568 -343 O-ring"
  },
  {
   "name": "backup-ring-8-345",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-345.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-345.stl",
   "note": "Parker 8-345 backup ring envelope (uncut): ID 4.028 in (102.31 mm), OD 4.394 in (111.61 mm), thickness 0.076 in (1.93 mm); for the AS568 -345 O-ring"
  },
  {
   "name": "backup-ring-8-346",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-346.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-346.stl",
   "note": "Parker 8-346 backup ring envelope (uncut): ID 4.153 in (105.49 mm), OD 4.519 in (114.78 mm), thickness 0.076 in (1.93 mm); for the AS568 -346 O-ring"
  },
  {
   "name": "backup-ring-8-347",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-347.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-347.stl",
   "note": "Parker 8-347 backup ring envelope (uncut): ID 4.278 in (108.66 mm), OD 4.644 in (117.96 mm), thickness 0.076 in (1.93 mm); for the AS568 -347 O-ring"
  },
  {
   "name": "backup-ring-8-348",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-348.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-348.stl",
   "note": "Parker 8-348 backup ring envelope (uncut): ID 4.403 in (111.84 mm), OD 4.769 in (121.13 mm), thickness 0.076 in (1.93 mm); for the AS568 -348 O-ring"
  },
  {
   "name": "backup-ring-8-349",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-349.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-349.stl",
   "note": "Parker 8-349 backup ring envelope (uncut): ID 4.528 in (115.01 mm), OD 4.894 in (124.31 mm), thickness 0.076 in (1.93 mm); for the AS568 -349 O-ring"
  },
  {
   "name": "backup-ring-8-350",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-350.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-350.stl",
   "note": "Parker 8-350 backup ring envelope (uncut): ID 4.653 in (118.19 mm), OD 5.019 in (127.48 mm), thickness 0.076 in (1.93 mm); for the AS568 -350 O-ring"
  },
  {
   "name": "backup-ring-8-351",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-351.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-351.stl",
   "note": "Parker 8-351 backup ring envelope (uncut): ID 4.778 in (121.36 mm), OD 5.144 in (130.66 mm), thickness 0.076 in (1.93 mm); for the AS568 -351 O-ring"
  },
  {
   "name": "backup-ring-8-352",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-352.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-352.stl",
   "note": "Parker 8-352 backup ring envelope (uncut): ID 4.903 in (124.54 mm), OD 5.269 in (133.83 mm), thickness 0.076 in (1.93 mm); for the AS568 -352 O-ring"
  },
  {
   "name": "backup-ring-8-353",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-353.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-353.stl",
   "note": "Parker 8-353 backup ring envelope (uncut): ID 5.028 in (127.71 mm), OD 5.394 in (137.01 mm), thickness 0.076 in (1.93 mm); for the AS568 -353 O-ring"
  },
  {
   "name": "backup-ring-8-354",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-354.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-354.stl",
   "note": "Parker 8-354 backup ring envelope (uncut): ID 5.153 in (130.89 mm), OD 5.519 in (140.18 mm), thickness 0.076 in (1.93 mm); for the AS568 -354 O-ring"
  },
  {
   "name": "backup-ring-8-355",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-355.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-355.stl",
   "note": "Parker 8-355 backup ring envelope (uncut): ID 5.278 in (134.06 mm), OD 5.644 in (143.36 mm), thickness 0.076 in (1.93 mm); for the AS568 -355 O-ring"
  },
  {
   "name": "backup-ring-8-356",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-356.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-356.stl",
   "note": "Parker 8-356 backup ring envelope (uncut): ID 5.403 in (137.24 mm), OD 5.769 in (146.53 mm), thickness 0.076 in (1.93 mm); for the AS568 -356 O-ring"
  },
  {
   "name": "backup-ring-8-357",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-357.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-357.stl",
   "note": "Parker 8-357 backup ring envelope (uncut): ID 5.528 in (140.41 mm), OD 5.894 in (149.71 mm), thickness 0.076 in (1.93 mm); for the AS568 -357 O-ring"
  },
  {
   "name": "backup-ring-8-358",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-358.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-358.stl",
   "note": "Parker 8-358 backup ring envelope (uncut): ID 5.653 in (143.59 mm), OD 6.019 in (152.88 mm), thickness 0.076 in (1.93 mm); for the AS568 -358 O-ring"
  },
  {
   "name": "backup-ring-8-359",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-359.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-359.stl",
   "note": "Parker 8-359 backup ring envelope (uncut): ID 5.778 in (146.76 mm), OD 6.144 in (156.06 mm), thickness 0.076 in (1.93 mm); for the AS568 -359 O-ring"
  },
  {
   "name": "backup-ring-8-360",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-360.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-360.stl",
   "note": "Parker 8-360 backup ring envelope (uncut): ID 5.903 in (149.94 mm), OD 6.269 in (159.23 mm), thickness 0.076 in (1.93 mm); for the AS568 -360 O-ring"
  },
  {
   "name": "backup-ring-8-361",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-361.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-361.stl",
   "note": "Parker 8-361 backup ring envelope (uncut): ID 6.028 in (153.11 mm), OD 6.394 in (162.41 mm), thickness 0.076 in (1.93 mm); for the AS568 -361 O-ring"
  },
  {
   "name": "backup-ring-8-362",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-362.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-362.stl",
   "note": "Parker 8-362 backup ring envelope (uncut): ID 6.278 in (159.46 mm), OD 6.644 in (168.76 mm), thickness 0.076 in (1.93 mm); for the AS568 -362 O-ring"
  },
  {
   "name": "backup-ring-8-363",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-363.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-363.stl",
   "note": "Parker 8-363 backup ring envelope (uncut): ID 6.528 in (165.81 mm), OD 6.894 in (175.11 mm), thickness 0.076 in (1.93 mm); for the AS568 -363 O-ring"
  },
  {
   "name": "backup-ring-8-364",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-364.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-364.stl",
   "note": "Parker 8-364 backup ring envelope (uncut): ID 6.778 in (172.16 mm), OD 7.144 in (181.46 mm), thickness 0.076 in (1.93 mm); for the AS568 -364 O-ring"
  },
  {
   "name": "backup-ring-8-365",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-365.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-365.stl",
   "note": "Parker 8-365 backup ring envelope (uncut): ID 7.028 in (178.51 mm), OD 7.394 in (187.81 mm), thickness 0.076 in (1.93 mm); for the AS568 -365 O-ring"
  },
  {
   "name": "backup-ring-8-366",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-366.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-366.stl",
   "note": "Parker 8-366 backup ring envelope (uncut): ID 7.278 in (184.86 mm), OD 7.644 in (194.16 mm), thickness 0.076 in (1.93 mm); for the AS568 -366 O-ring"
  },
  {
   "name": "backup-ring-8-367",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-367.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-367.stl",
   "note": "Parker 8-367 backup ring envelope (uncut): ID 7.528 in (191.21 mm), OD 7.894 in (200.51 mm), thickness 0.076 in (1.93 mm); for the AS568 -367 O-ring"
  },
  {
   "name": "backup-ring-8-368",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-368.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-368.stl",
   "note": "Parker 8-368 backup ring envelope (uncut): ID 7.778 in (197.56 mm), OD 8.144 in (206.86 mm), thickness 0.076 in (1.93 mm); for the AS568 -368 O-ring"
  },
  {
   "name": "backup-ring-8-369",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-369.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-369.stl",
   "note": "Parker 8-369 backup ring envelope (uncut): ID 8.028 in (203.91 mm), OD 8.394 in (213.21 mm), thickness 0.076 in (1.93 mm); for the AS568 -369 O-ring"
  },
  {
   "name": "backup-ring-8-370",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-370.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-370.stl",
   "note": "Parker 8-370 backup ring envelope (uncut): ID 8.278 in (210.26 mm), OD 8.644 in (219.56 mm), thickness 0.076 in (1.93 mm); for the AS568 -370 O-ring"
  },
  {
   "name": "backup-ring-8-371",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-371.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-371.stl",
   "note": "Parker 8-371 backup ring envelope (uncut): ID 8.528 in (216.61 mm), OD 8.894 in (225.91 mm), thickness 0.076 in (1.93 mm); for the AS568 -371 O-ring"
  },
  {
   "name": "backup-ring-8-372",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-372.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-372.stl",
   "note": "Parker 8-372 backup ring envelope (uncut): ID 8.778 in (222.96 mm), OD 9.144 in (232.26 mm), thickness 0.076 in (1.93 mm); for the AS568 -372 O-ring"
  },
  {
   "name": "backup-ring-8-373",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-373.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-373.stl",
   "note": "Parker 8-373 backup ring envelope (uncut): ID 9.028 in (229.31 mm), OD 9.394 in (238.61 mm), thickness 0.076 in (1.93 mm); for the AS568 -373 O-ring"
  },
  {
   "name": "backup-ring-8-374",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-374.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-374.stl",
   "note": "Parker 8-374 backup ring envelope (uncut): ID 9.278 in (235.66 mm), OD 9.644 in (244.96 mm), thickness 0.076 in (1.93 mm); for the AS568 -374 O-ring"
  },
  {
   "name": "backup-ring-8-375",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-375.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-375.stl",
   "note": "Parker 8-375 backup ring envelope (uncut): ID 9.528 in (242.01 mm), OD 9.894 in (251.31 mm), thickness 0.076 in (1.93 mm); for the AS568 -375 O-ring"
  },
  {
   "name": "backup-ring-8-376",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-376.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-376.stl",
   "note": "Parker 8-376 backup ring envelope (uncut): ID 9.778 in (248.36 mm), OD 10.144 in (257.66 mm), thickness 0.076 in (1.93 mm); for the AS568 -376 O-ring"
  },
  {
   "name": "backup-ring-8-377",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-377.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-377.stl",
   "note": "Parker 8-377 backup ring envelope (uncut): ID 10.028 in (254.71 mm), OD 10.394 in (264.01 mm), thickness 0.076 in (1.93 mm); for the AS568 -377 O-ring"
  },
  {
   "name": "backup-ring-8-378",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-378.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-378.stl",
   "note": "Parker 8-378 backup ring envelope (uncut): ID 10.528 in (267.41 mm), OD 10.894 in (276.71 mm), thickness 0.076 in (1.93 mm); for the AS568 -378 O-ring"
  },
  {
   "name": "backup-ring-8-379",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-379.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-379.stl",
   "note": "Parker 8-379 backup ring envelope (uncut): ID 11.028 in (280.11 mm), OD 11.394 in (289.41 mm), thickness 0.076 in (1.93 mm); for the AS568 -379 O-ring"
  },
  {
   "name": "backup-ring-8-380",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-380.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-380.stl",
   "note": "Parker 8-380 backup ring envelope (uncut): ID 11.528 in (292.81 mm), OD 11.894 in (302.11 mm), thickness 0.076 in (1.93 mm); for the AS568 -380 O-ring"
  },
  {
   "name": "backup-ring-8-381",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-381.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-381.stl",
   "note": "Parker 8-381 backup ring envelope (uncut): ID 12.028 in (305.51 mm), OD 12.394 in (314.81 mm), thickness 0.076 in (1.93 mm); for the AS568 -381 O-ring"
  },
  {
   "name": "backup-ring-8-382",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-382.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-382.stl",
   "note": "Parker 8-382 backup ring envelope (uncut): ID 13.028 in (330.91 mm), OD 13.394 in (340.21 mm), thickness 0.076 in (1.93 mm); for the AS568 -382 O-ring"
  },
  {
   "name": "backup-ring-8-383",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-383.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-383.stl",
   "note": "Parker 8-383 backup ring envelope (uncut): ID 14.028 in (356.31 mm), OD 14.394 in (365.61 mm), thickness 0.076 in (1.93 mm); for the AS568 -383 O-ring"
  },
  {
   "name": "backup-ring-8-384",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-384.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-384.stl",
   "note": "Parker 8-384 backup ring envelope (uncut): ID 15.028 in (381.71 mm), OD 15.394 in (391.01 mm), thickness 0.076 in (1.93 mm); for the AS568 -384 O-ring"
  },
  {
   "name": "backup-ring-8-385",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-385.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-385.stl",
   "note": "Parker 8-385 backup ring envelope (uncut): ID 16.008 in (406.60 mm), OD 16.374 in (415.90 mm), thickness 0.076 in (1.93 mm); for the AS568 -385 O-ring"
  },
  {
   "name": "backup-ring-8-386",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-386.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-386.stl",
   "note": "Parker 8-386 backup ring envelope (uncut): ID 17.008 in (432.00 mm), OD 17.374 in (441.30 mm), thickness 0.076 in (1.93 mm); for the AS568 -386 O-ring"
  },
  {
   "name": "backup-ring-8-387",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-387.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-387.stl",
   "note": "Parker 8-387 backup ring envelope (uncut): ID 18.008 in (457.40 mm), OD 18.374 in (466.70 mm), thickness 0.076 in (1.93 mm); for the AS568 -387 O-ring"
  },
  {
   "name": "backup-ring-8-388",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-388.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-388.stl",
   "note": "Parker 8-388 backup ring envelope (uncut): ID 19.006 in (482.75 mm), OD 19.372 in (492.05 mm), thickness 0.076 in (1.93 mm); for the AS568 -388 O-ring"
  },
  {
   "name": "backup-ring-8-389",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-389.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-389.stl",
   "note": "Parker 8-389 backup ring envelope (uncut): ID 20.006 in (508.15 mm), OD 20.372 in (517.45 mm), thickness 0.076 in (1.93 mm); for the AS568 -389 O-ring"
  },
  {
   "name": "backup-ring-8-390",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-390.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-390.stl",
   "note": "Parker 8-390 backup ring envelope (uncut): ID 21.006 in (533.55 mm), OD 21.372 in (542.85 mm), thickness 0.076 in (1.93 mm); for the AS568 -390 O-ring"
  },
  {
   "name": "backup-ring-8-391",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-391.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-391.stl",
   "note": "Parker 8-391 backup ring envelope (uncut): ID 22.006 in (558.95 mm), OD 22.372 in (568.25 mm), thickness 0.076 in (1.93 mm); for the AS568 -391 O-ring"
  },
  {
   "name": "backup-ring-8-392",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-392.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-392.stl",
   "note": "Parker 8-392 backup ring envelope (uncut): ID 22.993 in (584.02 mm), OD 23.359 in (593.32 mm), thickness 0.076 in (1.93 mm); for the AS568 -392 O-ring"
  },
  {
   "name": "backup-ring-8-393",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-393.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-393.stl",
   "note": "Parker 8-393 backup ring envelope (uncut): ID 23.993 in (609.42 mm), OD 24.359 in (618.72 mm), thickness 0.076 in (1.93 mm); for the AS568 -393 O-ring"
  },
  {
   "name": "backup-ring-8-394",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-394.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-394.stl",
   "note": "Parker 8-394 backup ring envelope (uncut): ID 24.993 in (634.82 mm), OD 25.359 in (644.12 mm), thickness 0.076 in (1.93 mm); for the AS568 -394 O-ring"
  },
  {
   "name": "backup-ring-8-395",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-395.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-395.stl",
   "note": "Parker 8-395 backup ring envelope (uncut): ID 25.993 in (660.22 mm), OD 26.359 in (669.52 mm), thickness 0.076 in (1.93 mm); for the AS568 -395 O-ring"
  },
  {
   "name": "backup-ring-8-425",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-425.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-425.stl",
   "note": "Parker 8-425 backup ring envelope (uncut): ID 4.551 in (115.60 mm), OD 5.023 in (127.58 mm), thickness 0.117 in (2.97 mm); for the AS568 -425 O-ring"
  },
  {
   "name": "backup-ring-8-426",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-426.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-426.stl",
   "note": "Parker 8-426 backup ring envelope (uncut): ID 4.676 in (118.77 mm), OD 5.148 in (130.76 mm), thickness 0.117 in (2.97 mm); for the AS568 -426 O-ring"
  },
  {
   "name": "backup-ring-8-427",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-427.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-427.stl",
   "note": "Parker 8-427 backup ring envelope (uncut): ID 4.801 in (121.95 mm), OD 5.273 in (133.93 mm), thickness 0.117 in (2.97 mm); for the AS568 -427 O-ring"
  },
  {
   "name": "backup-ring-8-428",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-428.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-428.stl",
   "note": "Parker 8-428 backup ring envelope (uncut): ID 4.926 in (125.12 mm), OD 5.398 in (137.11 mm), thickness 0.117 in (2.97 mm); for the AS568 -428 O-ring"
  },
  {
   "name": "backup-ring-8-429",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-429.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-429.stl",
   "note": "Parker 8-429 backup ring envelope (uncut): ID 5.051 in (128.30 mm), OD 5.523 in (140.28 mm), thickness 0.117 in (2.97 mm); for the AS568 -429 O-ring"
  },
  {
   "name": "backup-ring-8-430",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-430.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-430.stl",
   "note": "Parker 8-430 backup ring envelope (uncut): ID 5.176 in (131.47 mm), OD 5.648 in (143.46 mm), thickness 0.117 in (2.97 mm); for the AS568 -430 O-ring"
  },
  {
   "name": "backup-ring-8-431",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-431.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-431.stl",
   "note": "Parker 8-431 backup ring envelope (uncut): ID 5.301 in (134.65 mm), OD 5.773 in (146.63 mm), thickness 0.117 in (2.97 mm); for the AS568 -431 O-ring"
  },
  {
   "name": "backup-ring-8-432",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-432.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-432.stl",
   "note": "Parker 8-432 backup ring envelope (uncut): ID 5.426 in (137.82 mm), OD 5.898 in (149.81 mm), thickness 0.117 in (2.97 mm); for the AS568 -432 O-ring"
  },
  {
   "name": "backup-ring-8-433",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-433.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-433.stl",
   "note": "Parker 8-433 backup ring envelope (uncut): ID 5.551 in (141.00 mm), OD 6.023 in (152.98 mm), thickness 0.117 in (2.97 mm); for the AS568 -433 O-ring"
  },
  {
   "name": "backup-ring-8-434",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-434.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-434.stl",
   "note": "Parker 8-434 backup ring envelope (uncut): ID 5.676 in (144.17 mm), OD 6.148 in (156.16 mm), thickness 0.117 in (2.97 mm); for the AS568 -434 O-ring"
  },
  {
   "name": "backup-ring-8-435",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-435.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-435.stl",
   "note": "Parker 8-435 backup ring envelope (uncut): ID 5.801 in (147.35 mm), OD 6.273 in (159.33 mm), thickness 0.117 in (2.97 mm); for the AS568 -435 O-ring"
  },
  {
   "name": "backup-ring-8-436",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-436.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-436.stl",
   "note": "Parker 8-436 backup ring envelope (uncut): ID 5.926 in (150.52 mm), OD 6.398 in (162.51 mm), thickness 0.117 in (2.97 mm); for the AS568 -436 O-ring"
  },
  {
   "name": "backup-ring-8-437",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-437.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-437.stl",
   "note": "Parker 8-437 backup ring envelope (uncut): ID 6.051 in (153.70 mm), OD 6.523 in (165.68 mm), thickness 0.117 in (2.97 mm); for the AS568 -437 O-ring"
  },
  {
   "name": "backup-ring-8-438",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-438.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-438.stl",
   "note": "Parker 8-438 backup ring envelope (uncut): ID 6.274 in (159.36 mm), OD 6.746 in (171.35 mm), thickness 0.117 in (2.97 mm); for the AS568 -438 O-ring"
  },
  {
   "name": "backup-ring-8-439",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-439.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-439.stl",
   "note": "Parker 8-439 backup ring envelope (uncut): ID 6.524 in (165.71 mm), OD 6.996 in (177.70 mm), thickness 0.117 in (2.97 mm); for the AS568 -439 O-ring"
  },
  {
   "name": "backup-ring-8-440",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-440.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-440.stl",
   "note": "Parker 8-440 backup ring envelope (uncut): ID 6.774 in (172.06 mm), OD 7.246 in (184.05 mm), thickness 0.117 in (2.97 mm); for the AS568 -440 O-ring"
  },
  {
   "name": "backup-ring-8-441",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-441.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-441.stl",
   "note": "Parker 8-441 backup ring envelope (uncut): ID 7.024 in (178.41 mm), OD 7.496 in (190.40 mm), thickness 0.117 in (2.97 mm); for the AS568 -441 O-ring"
  },
  {
   "name": "backup-ring-8-442",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-442.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-442.stl",
   "note": "Parker 8-442 backup ring envelope (uncut): ID 7.274 in (184.76 mm), OD 7.746 in (196.75 mm), thickness 0.117 in (2.97 mm); for the AS568 -442 O-ring"
  },
  {
   "name": "backup-ring-8-443",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-443.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-443.stl",
   "note": "Parker 8-443 backup ring envelope (uncut): ID 7.524 in (191.11 mm), OD 7.996 in (203.10 mm), thickness 0.117 in (2.97 mm); for the AS568 -443 O-ring"
  },
  {
   "name": "backup-ring-8-444",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-444.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-444.stl",
   "note": "Parker 8-444 backup ring envelope (uncut): ID 7.774 in (197.46 mm), OD 8.246 in (209.45 mm), thickness 0.117 in (2.97 mm); for the AS568 -444 O-ring"
  },
  {
   "name": "backup-ring-8-445",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-445.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-445.stl",
   "note": "Parker 8-445 backup ring envelope (uncut): ID 8.024 in (203.81 mm), OD 8.496 in (215.80 mm), thickness 0.117 in (2.97 mm); for the AS568 -445 O-ring"
  },
  {
   "name": "backup-ring-8-446",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-446.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-446.stl",
   "note": "Parker 8-446 backup ring envelope (uncut): ID 8.524 in (216.51 mm), OD 8.996 in (228.50 mm), thickness 0.117 in (2.97 mm); for the AS568 -446 O-ring"
  },
  {
   "name": "backup-ring-8-447",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-447.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-447.stl",
   "note": "Parker 8-447 backup ring envelope (uncut): ID 9.024 in (229.21 mm), OD 9.496 in (241.20 mm), thickness 0.117 in (2.97 mm); for the AS568 -447 O-ring"
  },
  {
   "name": "backup-ring-8-448",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-448.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-448.stl",
   "note": "Parker 8-448 backup ring envelope (uncut): ID 9.524 in (241.91 mm), OD 9.996 in (253.90 mm), thickness 0.117 in (2.97 mm); for the AS568 -448 O-ring"
  },
  {
   "name": "backup-ring-8-449",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-449.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-449.stl",
   "note": "Parker 8-449 backup ring envelope (uncut): ID 10.024 in (254.61 mm), OD 10.496 in (266.60 mm), thickness 0.117 in (2.97 mm); for the AS568 -449 O-ring"
  },
  {
   "name": "backup-ring-8-450",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-450.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-450.stl",
   "note": "Parker 8-450 backup ring envelope (uncut): ID 10.524 in (267.31 mm), OD 10.996 in (279.30 mm), thickness 0.117 in (2.97 mm); for the AS568 -450 O-ring"
  },
  {
   "name": "backup-ring-8-451",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-451.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-451.stl",
   "note": "Parker 8-451 backup ring envelope (uncut): ID 11.024 in (280.01 mm), OD 11.496 in (292.00 mm), thickness 0.117 in (2.97 mm); for the AS568 -451 O-ring"
  },
  {
   "name": "backup-ring-8-452",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-452.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-452.stl",
   "note": "Parker 8-452 backup ring envelope (uncut): ID 11.524 in (292.71 mm), OD 11.996 in (304.70 mm), thickness 0.117 in (2.97 mm); for the AS568 -452 O-ring"
  },
  {
   "name": "backup-ring-8-453",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-453.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-453.stl",
   "note": "Parker 8-453 backup ring envelope (uncut): ID 12.024 in (305.41 mm), OD 12.496 in (317.40 mm), thickness 0.117 in (2.97 mm); for the AS568 -453 O-ring"
  },
  {
   "name": "backup-ring-8-454",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-454.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-454.stl",
   "note": "Parker 8-454 backup ring envelope (uncut): ID 12.524 in (318.11 mm), OD 12.996 in (330.10 mm), thickness 0.117 in (2.97 mm); for the AS568 -454 O-ring"
  },
  {
   "name": "backup-ring-8-455",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-455.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-455.stl",
   "note": "Parker 8-455 backup ring envelope (uncut): ID 13.024 in (330.81 mm), OD 13.496 in (342.80 mm), thickness 0.117 in (2.97 mm); for the AS568 -455 O-ring"
  },
  {
   "name": "backup-ring-8-456",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-456.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-456.stl",
   "note": "Parker 8-456 backup ring envelope (uncut): ID 13.524 in (343.51 mm), OD 13.996 in (355.50 mm), thickness 0.117 in (2.97 mm); for the AS568 -456 O-ring"
  },
  {
   "name": "backup-ring-8-457",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-457.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-457.stl",
   "note": "Parker 8-457 backup ring envelope (uncut): ID 14.024 in (356.21 mm), OD 14.496 in (368.20 mm), thickness 0.117 in (2.97 mm); for the AS568 -457 O-ring"
  },
  {
   "name": "backup-ring-8-458",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-458.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-458.stl",
   "note": "Parker 8-458 backup ring envelope (uncut): ID 14.524 in (368.91 mm), OD 14.996 in (380.90 mm), thickness 0.117 in (2.97 mm); for the AS568 -458 O-ring"
  },
  {
   "name": "backup-ring-8-459",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-459.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-459.stl",
   "note": "Parker 8-459 backup ring envelope (uncut): ID 15.024 in (381.61 mm), OD 15.496 in (393.60 mm), thickness 0.117 in (2.97 mm); for the AS568 -459 O-ring"
  },
  {
   "name": "backup-ring-8-460",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-460.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-460.stl",
   "note": "Parker 8-460 backup ring envelope (uncut): ID 15.524 in (394.31 mm), OD 15.996 in (406.30 mm), thickness 0.117 in (2.97 mm); for the AS568 -460 O-ring"
  },
  {
   "name": "backup-ring-8-461",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-461.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-461.stl",
   "note": "Parker 8-461 backup ring envelope (uncut): ID 16.004 in (406.50 mm), OD 16.476 in (418.49 mm), thickness 0.117 in (2.97 mm); for the AS568 -461 O-ring"
  },
  {
   "name": "backup-ring-8-462",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-462.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-462.stl",
   "note": "Parker 8-462 backup ring envelope (uncut): ID 16.504 in (419.20 mm), OD 16.976 in (431.19 mm), thickness 0.117 in (2.97 mm); for the AS568 -462 O-ring"
  },
  {
   "name": "backup-ring-8-463",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-463.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-463.stl",
   "note": "Parker 8-463 backup ring envelope (uncut): ID 17.004 in (431.90 mm), OD 17.476 in (443.89 mm), thickness 0.117 in (2.97 mm); for the AS568 -463 O-ring"
  },
  {
   "name": "backup-ring-8-464",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-464.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-464.stl",
   "note": "Parker 8-464 backup ring envelope (uncut): ID 17.504 in (444.60 mm), OD 17.976 in (456.59 mm), thickness 0.117 in (2.97 mm); for the AS568 -464 O-ring"
  },
  {
   "name": "backup-ring-8-465",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-465.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-465.stl",
   "note": "Parker 8-465 backup ring envelope (uncut): ID 18.004 in (457.30 mm), OD 18.476 in (469.29 mm), thickness 0.117 in (2.97 mm); for the AS568 -465 O-ring"
  },
  {
   "name": "backup-ring-8-466",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-466.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-466.stl",
   "note": "Parker 8-466 backup ring envelope (uncut): ID 18.504 in (470.00 mm), OD 18.976 in (481.99 mm), thickness 0.117 in (2.97 mm); for the AS568 -466 O-ring"
  },
  {
   "name": "backup-ring-8-467",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-467.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-467.stl",
   "note": "Parker 8-467 backup ring envelope (uncut): ID 19.004 in (482.70 mm), OD 19.476 in (494.69 mm), thickness 0.117 in (2.97 mm); for the AS568 -467 O-ring"
  },
  {
   "name": "backup-ring-8-468",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-468.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-468.stl",
   "note": "Parker 8-468 backup ring envelope (uncut): ID 19.504 in (495.40 mm), OD 19.976 in (507.39 mm), thickness 0.117 in (2.97 mm); for the AS568 -468 O-ring"
  },
  {
   "name": "backup-ring-8-469",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-469.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-469.stl",
   "note": "Parker 8-469 backup ring envelope (uncut): ID 20.004 in (508.10 mm), OD 20.476 in (520.09 mm), thickness 0.117 in (2.97 mm); for the AS568 -469 O-ring"
  },
  {
   "name": "backup-ring-8-470",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-470.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-470.stl",
   "note": "Parker 8-470 backup ring envelope (uncut): ID 21.004 in (533.50 mm), OD 21.476 in (545.49 mm), thickness 0.117 in (2.97 mm); for the AS568 -470 O-ring"
  },
  {
   "name": "backup-ring-8-471",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-471.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-471.stl",
   "note": "Parker 8-471 backup ring envelope (uncut): ID 22.004 in (558.90 mm), OD 22.476 in (570.89 mm), thickness 0.117 in (2.97 mm); for the AS568 -471 O-ring"
  },
  {
   "name": "backup-ring-8-472",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-472.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-472.stl",
   "note": "Parker 8-472 backup ring envelope (uncut): ID 23.004 in (584.30 mm), OD 23.476 in (596.29 mm), thickness 0.117 in (2.97 mm); for the AS568 -472 O-ring"
  },
  {
   "name": "backup-ring-8-473",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-473.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-473.stl",
   "note": "Parker 8-473 backup ring envelope (uncut): ID 24.004 in (609.70 mm), OD 24.476 in (621.69 mm), thickness 0.117 in (2.97 mm); for the AS568 -473 O-ring"
  },
  {
   "name": "backup-ring-8-474",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-474.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-474.stl",
   "note": "Parker 8-474 backup ring envelope (uncut): ID 25.004 in (635.10 mm), OD 25.476 in (647.09 mm), thickness 0.117 in (2.97 mm); for the AS568 -474 O-ring"
  },
  {
   "name": "backup-ring-8-475",
   "step": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-475.step",
   "stl": "/files/hardware/backup-rings-as568-parker-8-xxx/backup-ring-8-475.stl",
   "note": "Parker 8-475 backup ring envelope (uncut): ID 26.004 in (660.50 mm), OD 26.476 in (672.49 mm), thickness 0.117 in (2.97 mm); for the AS568 -475 O-ring"
  }
 ]
}