Gas springs and gas struts: rod / tube diameters, end threads, stroke and extended-length series (nb-parts, SUSPA 16-3, McMaster-Carr) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/gas-springs-series-and-strokes/ (sheet CC BY 4.0) Basis: nb-parts' gas spring catalogue (Ø pairs, threads, stroke ranges), SUSPA's type 16-3 data, and McMaster-Carr's painted-steel eyelet and 316 stainless adjustable-force tables (extended, compressed, stroke); numbers only Catalog version: 2026-10-20 Sizes: see table below - nb-parts rows: model name, the Ø pair as printed (the text does not label which Ø is the rod), the thread as printed and the stroke range in mm. The catalogue's GF 20/40 appears twice with different data (M14, 50–600 mm; M14x1.5, 100–700 mm); both are shown. Extended-length formulas that appeared in a machine reading of the catalogue are not shown because the source text does not state them. - SUSPA type 16-3: rod Ø8 mm, tube Ø21.5 mm, tube end M8 x 1.0, rod end M6 x 1.0, tube length 85 to 535 mm, force range 100 to 600 N (the page prints the minimum tube length as 'rod (B) + 37'), all as printed. The page does not give the stroke / extended-length pairs, so none is shown. - McMaster-Carr rows are inches as printed on its gas spring page: the painted-steel series with eyelet fittings (extended, compressed and stroke; body Ø0.47 in, rod Ø0.16 in, M4 rod thread) and the 316 stainless adjustable-force series (M8 rod on a 0.88 in body, M10 rod on a 1.17 in body, with extended and compressed force in lbf). The page states that each end fitting adds its own Length 1 to the extended and compressed lengths of the spring, so the figures are for the spring without fittings. - End fittings, eyelets and ball sockets and their threads are on gas-spring-end-fittings. The gas-spring-cylinder-18mm page is a different thing (a thermodynamic gas spring in a free-piston Stirling engine); springs covers coil springs. - No file: the gas spring is a cylinder and rod whose end fittings and tube ends are not given as numbers. McMaster-Carr sells gas springs, locking gas springs and end fittings with per-part STEP; linked, not copied. source model / part diameters end thread stroke extended length compressed length force nb-parts GF 3/10 Ø 3 / 10 mm M3.5 / M4 (as printed) 10–80 mm — — — nb-parts GF 6/15 M5 Ø 6 / 15 mm M5 50–200 mm — — — nb-parts GF 8/19 M6 Ø 8 / 19 mm M6 75–300 mm — — — nb-parts GF 10/22 M8 Ø 10 / 22 mm M8 75–400 mm — — — nb-parts GF 10/28 M8 Ø 10 / 28 mm M8 75–400 mm — — — nb-parts GF 14/28 M10 Ø 14 / 28 mm M10 100–500 mm — — — nb-parts GF 20/40 M14 Ø 20 / 40 mm M14 50–600 mm — — — nb-parts GF 20/40 (standard section) Ø 20 / 40 mm M14x1.5 100–700 mm — — — nb-parts GF 25/55 Ø 25 / 55 mm M20x1.5 100–700 mm — — — nb-parts GF 30/65 Ø 30 / 65 mm M24x2 100–700 mm — — — nb-parts GF 10/22 with welded eyelets Ø 10 / 22 mm — (eyelets) 250–1150 mm — — — SUSPA type 16-3 16-3 rod Ø8 / tube Ø21.5 mm tube end M8 x 1.0; rod end M6 x 1.0 tube length 85 to 535 mm (as printed) — — 100 to 600 N (extended) McMaster-Carr painted steel, eyelet fittings 9417K71 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 0.79 in 3.54 in 2.76 in — McMaster-Carr painted steel, eyelet fittings 9417K1 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 1.18 in 4.33 in 3.15 in — McMaster-Carr painted steel, eyelet fittings 9417K2 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 1.57 in 5.11 in 3.54 in — McMaster-Carr painted steel, eyelet fittings 4253N11 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 1.85 in 5.71 in 3.86 in — McMaster-Carr painted steel, eyelet fittings 9417K3 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 2.17 in 6.29 in 4.12 in — McMaster-Carr painted steel, eyelet fittings 9417K4 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 2.56 in 7.08 in 4.52 in — McMaster-Carr painted steel, eyelet fittings 4253N12 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 2.83 in 7.68 in 4.85 in — McMaster-Carr painted steel, eyelet fittings 9417K5 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 3.15 in 8.26 in 5.11 in — McMaster-Carr painted steel, eyelet fittings 9417K6 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 3.54 in 9.05 in 5.51 in — McMaster-Carr painted steel, eyelet fittings 4253N13 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 3.94 in 9.84 in 5.90 in — McMaster-Carr painted steel, eyelet fittings 4253N14 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 4.33 in 10.63 in 6.30 in — McMaster-Carr painted steel, eyelet fittings 4253N15 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 4.72 in 11.42 in 6.70 in — McMaster-Carr painted steel, eyelet fittings 4253N16 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 5.12 in 12.20 in 7.08 in — McMaster-Carr painted steel, eyelet fittings 4253N17 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 5.51 in 12.99 in 7.48 in — McMaster-Carr painted steel, eyelet fittings 4253N18 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 5.91 in 13.78 in 7.87 in — McMaster-Carr painted steel, eyelet fittings 4253N19 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 6.30 in 14.57 in 8.27 in — McMaster-Carr painted steel, eyelet fittings 4253N21 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 6.69 in 15.35 in 8.66 in — McMaster-Carr painted steel, eyelet fittings 4253N22 body Ø0.47 in; rod Ø0.16 in; rod thread M4 (series values) M4 rod stroke 7.09 in 16.14 in 9.05 in — McMaster-Carr 316 stainless adjustable-force 6626K54 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 2 in 8.25 in 6.25 in 249 lbf ext. / 283 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K71 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 2 in 10.5 in 8.5 in 517 lbf ext. / 622 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K55 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 4 in 12.25 in 8.25 in 248 lbf ext. / 384 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K72 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 4 in 14.5 in 10.5 in 517 lbf ext. / 873 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K56 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 6 in 16.25 in 10.25 in 249 lbf ext. / 354 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K73 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 6 in 18.5 in 12.5 in 522 lbf ext. / 890 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K57 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 8 in 20.25 in 12.25 in 249 lbf ext. / 353 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K74 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 8 in 22.5 in 14.5 in 518 lbf ext. / 857 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K58 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 10 in 24.25 in 14.25 in 245 lbf ext. / 348 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K75 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 10 in 26.5 in 16.5 in 520 lbf ext. / 838 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K59 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 12 in 28.25 in 16.25 in 247 lbf ext. / 365 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K76 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 12 in 30.5 in 18.5 in 520 lbf ext. / 876 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K61 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 14 in 32.25 in 18.25 in 248 lbf ext. / 368 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K62 body Ø0.88 in; rod Ø0.38 in rod thread M8 stroke 16 in 36.25 in 20.25 in 245 lbf ext. / 366 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K77 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 16 in 38.5 in 22.5 in 514 lbf ext. / 866 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K78 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 20 in 46.5 in 26.5 in 516 lbf ext. / 847 lbf comp. McMaster-Carr 316 stainless adjustable-force 6626K79 body Ø1.17 in; rod Ø0.56 in rod thread M10 stroke 24 in 54.5 in 30.5 in 516 lbf ext. / 868 lbf comp. Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - nb-parts: Gas springs catalogue: Ø pairs, end thread, stroke ranges and end fittings (M3.5 to M24, ball sockets, eyelets, forks) — web — Maker catalogue; numbers only. The source text does not label which Ø of a pair is the rod — https://www.nb-parts.de/pdf/catalogues/nb-parts_gas-springs_en.pdf - SUSPA: Gas spring type 16-3: rod Ø8, tube Ø21.5, tube end M8 x 1.0, rod end M6 x 1.0, tube length 85 to 535 mm, force 100 to 600 N — web — Maker product page; numbers only — https://www.suspa.com/us/products/gas-springs/gas-springs-type-16-3 - McMaster-Carr: Gas springs, McMaster-Carr 'About gas springs' (eyelet series, adjustable-force stainless series, end fittings) (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/gas-spring-fitting-eyelets - McMaster-Carr: Mechanical struts and gas springs (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/mechanical-struts/ - McMaster-Carr: Locking gas springs (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/locking-gas-springs No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned. API: https://xemstudio.com/api/geometry?object=gas-springs-series-and-strokes