{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "glass-syringes",
 "name": "Glass syringes 1–50 mL (all-glass, ground-glass plunger): barrel and plunger",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Found & household materials",
 "year": null,
 "question": "What are the dimensions of a glass syringe used as a Stirling engine piston?",
 "tags": [
  "syringe",
  "glass syringe",
  "piston",
  "cylinder",
  "luer",
  "ground glass",
  "stirling",
  "long earth society"
 ],
 "aliases": [
  "glass syringe dimensions",
  "glass syringe stirling engine",
  "10ml glass syringe diameter",
  "all glass syringe od",
  "ground glass syringe piston",
  "5ml glass syringe size",
  "glass syringe barrel outside diameter"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": true,
 "free_files": 14,
 "url": "https://xemstudio.com/objects/glass-syringes/",
 "sheet_txt": "https://xemstudio.com/objects/glass-syringes/sheet.txt",
 "sheet": {
  "basis": "KD Scientific glass syringe datasheet (order codes 78-0871 to 78-0877, the Tomopal glass series; also Tomopal 140-4002 and 140-4550): piston OD, barrel OD D1, barrel collar D2, piston collar D3, length L. Luer cone per ISO 594-1 as given in BD's syringe data sheet.",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Published per size (KDS / Tomopal datasheet), and drawn exactly: plunger (piston) OD, which is the barrel bore of a ground-glass syringe; barrel OD (D1); barrel collar Ø (D2); piston collar Ø (D3); length L. 1 mL Ø4.80 bore / Ø8.30 OD / L 115.00; 2 mL 6.45 / 9.95 / 115.00; 5 mL 12.60 / 15.40 / 105.00; 10 mL 15.15 / 18.35 / 128.50; 20 mL 20.40 / 24.20 / 145.50; 30 mL 22.90 / 27.30 / 163.00; 50 mL 27.45 / 32.35 / 178.00. Every one of these five numbers is verified for every size drawn.",
   "Drawn but not published (my geometry, so the parts are whole): the datasheet does not name L's end points, so L is drawn from the Luer tip end to the top of the barrel collar (the plunger is not in it: 1 and 2 mL share L = 115 while their strokes differ); the tip is a male Luer cone per ISO 594-1 (Ø3.925 at the end, 6 % taper, 7.5 long, Ø1.2 bore at the standard's minimum); the closed end wall is as thick as the barrel wall; both collars are 3 mm thick and round (the real barrel collar has two flats, width not published); the plunger rod is as long as the bore, so the collars meet when the plunger bottoms. The metal Luer-lock collar is not drawn (its outside is not defined by ISO 594-2 and not given in the datasheet).",
   "3 mL is left out: the series has no 3 mL and I found no other datasheet that gives a 3 mL glass barrel's OD, length and collar. Brands differ: the syringe-pump tables give the Popper (Micro-Mate) glass bores as 1 mL 4.50, 2 mL 8.92, 3 mL 8.99, 5 mL 11.7, 10 mL 14.7, 20 mL 19.6, 30 mL 22.7, 50 mL 29.0 mm (the bores most DIY builds quote); those are listed in the table for reference but not drawn, because no Popper OD, length or collar size is published.",
   "In the existing frames: the plastic-syringe sockets are Ø15.9 (alpha V-twin frame, V block, Ross frame, LTD top plate, tri-clamp syringe head, syringe-cradle-10ml). A glass 5 mL barrel (Ø15.40) goes in with 0.50 mm diametral play (it does not grip: the socket is 0.25 mm per side oversize); a glass 10 mL (Ø18.35) does not go in. syringe-cradle-20ml (Ø21.0) fits no glass size; syringe-cradle-60ml (Ø29.0) takes a glass 30 mL (Ø27.30) with 1.70 play, not a 50 mL (Ø32.35). The syringe-pistons (Ø14.5 / 19.1 / 21.7) are plastic-barrel bores and fit no glass barrel: a glass syringe runs on its own plunger.",
   "Stroke volume per mm = bore² × π / 4: 5 mL 0.125 mL/mm, 10 mL 0.180 mL/mm. The 5 mL is the power piston of the mug LTD and the test-tube marble engine; glass-syringe-plunger-clevis takes the con-rod."
  ],
  "table": {
   "columns": [
    "size",
    "bore_mm",
    "barrel_od_mm",
    "barrel_collar_mm",
    "piston_collar_mm",
    "length_mm",
    "ml_per_mm",
    "popper_bore_mm",
    "verified_and_drawn"
   ],
   "rows": [
    [
     "1 mL",
     4.8,
     8.3,
     14.95,
     11.5,
     115,
     0.0181,
     4.5,
     "bore, OD, collar Ø, piston collar Ø, length"
    ],
    [
     "2 mL",
     6.45,
     9.95,
     16.4,
     12.25,
     115,
     0.0327,
     8.92,
     "bore, OD, collar Ø, piston collar Ø, length"
    ],
    [
     "3 mL",
     null,
     null,
     null,
     null,
     null,
     null,
     8.99,
     "not drawn: no published barrel OD / length / collar found"
    ],
    [
     "5 mL",
     12.6,
     15.4,
     22.25,
     17.25,
     105,
     0.1247,
     11.7,
     "bore, OD, collar Ø, piston collar Ø, length"
    ],
    [
     "10 mL",
     15.15,
     18.35,
     26.2,
     19.95,
     128.5,
     0.1803,
     14.7,
     "bore, OD, collar Ø, piston collar Ø, length"
    ],
    [
     "20 mL",
     20.4,
     24.2,
     33.25,
     24.65,
     145.5,
     0.3269,
     19.6,
     "bore, OD, collar Ø, piston collar Ø, length"
    ],
    [
     "30 mL",
     22.9,
     27.3,
     37.55,
     27.95,
     163,
     0.4119,
     22.7,
     "bore, OD, collar Ø, piston collar Ø, length"
    ],
    [
     "50 mL",
     27.45,
     32.35,
     44,
     34.05,
     178,
     0.5918,
     29,
     "bore, OD, collar Ø, piston collar Ø, length"
    ]
   ]
  }
 },
 "sheet_text": "Glass syringes 1–50 mL (all-glass, ground-glass plunger): barrel and plunger — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/glass-syringes/  (CC BY 4.0)\nBasis: KD Scientific glass syringe datasheet (order codes 78-0871 to 78-0877, the Tomopal glass series; also Tomopal 140-4002 and 140-4550): piston OD, barrel OD D1, barrel collar D2, piston collar D3, length L. Luer cone per ISO 594-1 as given in BD's syringe data sheet.\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Published per size (KDS / Tomopal datasheet), and drawn exactly: plunger (piston) OD, which is the barrel bore of a ground-glass syringe; barrel OD (D1); barrel collar Ø (D2); piston collar Ø (D3); length L. 1 mL Ø4.80 bore / Ø8.30 OD / L 115.00; 2 mL 6.45 / 9.95 / 115.00; 5 mL 12.60 / 15.40 / 105.00; 10 mL 15.15 / 18.35 / 128.50; 20 mL 20.40 / 24.20 / 145.50; 30 mL 22.90 / 27.30 / 163.00; 50 mL 27.45 / 32.35 / 178.00. Every one of these five numbers is verified for every size drawn.\n- Drawn but not published (my geometry, so the parts are whole): the datasheet does not name L's end points, so L is drawn from the Luer tip end to the top of the barrel collar (the plunger is not in it: 1 and 2 mL share L = 115 while their strokes differ); the tip is a male Luer cone per ISO 594-1 (Ø3.925 at the end, 6 % taper, 7.5 long, Ø1.2 bore at the standard's minimum); the closed end wall is as thick as the barrel wall; both collars are 3 mm thick and round (the real barrel collar has two flats, width not published); the plunger rod is as long as the bore, so the collars meet when the plunger bottoms. The metal Luer-lock collar is not drawn (its outside is not defined by ISO 594-2 and not given in the datasheet).\n- 3 mL is left out: the series has no 3 mL and I found no other datasheet that gives a 3 mL glass barrel's OD, length and collar. Brands differ: the syringe-pump tables give the Popper (Micro-Mate) glass bores as 1 mL 4.50, 2 mL 8.92, 3 mL 8.99, 5 mL 11.7, 10 mL 14.7, 20 mL 19.6, 30 mL 22.7, 50 mL 29.0 mm (the bores most DIY builds quote); those are listed in the table for reference but not drawn, because no Popper OD, length or collar size is published.\n- In the existing frames: the plastic-syringe sockets are Ø15.9 (alpha V-twin frame, V block, Ross frame, LTD top plate, tri-clamp syringe head, syringe-cradle-10ml). A glass 5 mL barrel (Ø15.40) goes in with 0.50 mm diametral play (it does not grip: the socket is 0.25 mm per side oversize); a glass 10 mL (Ø18.35) does not go in. syringe-cradle-20ml (Ø21.0) fits no glass size; syringe-cradle-60ml (Ø29.0) takes a glass 30 mL (Ø27.30) with 1.70 play, not a 50 mL (Ø32.35). The syringe-pistons (Ø14.5 / 19.1 / 21.7) are plastic-barrel bores and fit no glass barrel: a glass syringe runs on its own plunger.\n- Stroke volume per mm = bore² × π / 4: 5 mL 0.125 mL/mm, 10 mL 0.180 mL/mm. The 5 mL is the power piston of the mug LTD and the test-tube marble engine; glass-syringe-plunger-clevis takes the con-rod.\n\nsize  bore_mm  barrel_od_mm  barrel_collar_mm  piston_collar_mm  length_mm  ml_per_mm  popper_bore_mm  verified_and_drawn\n1 mL  4.8  8.3  14.95  11.5  115.0  0.0181  4.5  bore, OD, collar Ø, piston collar Ø, length\n2 mL  6.45  9.95  16.4  12.25  115.0  0.0327  8.92  bore, OD, collar Ø, piston collar Ø, length\n3 mL  None  None  None  None  None  None  8.99  not drawn: no published barrel OD / length / collar found\n5 mL  12.6  15.4  22.25  17.25  105.0  0.1247  11.7  bore, OD, collar Ø, piston collar Ø, length\n10 mL  15.15  18.35  26.2  19.95  128.5  0.1803  14.7  bore, OD, collar Ø, piston collar Ø, length\n20 mL  20.4  24.2  33.25  24.65  145.5  0.3269  19.6  bore, OD, collar Ø, piston collar Ø, length\n30 mL  22.9  27.3  37.55  27.95  163.0  0.4119  22.7  bore, OD, collar Ø, piston collar Ø, length\n50 mL  27.45  32.35  44.0  34.05  178.0  0.5918  29.0  bore, OD, collar Ø, piston collar Ø, length\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- KD Scientific: Full Line of Glass Syringes, rev. A (order codes 78-0871 to 78-0880): piston OD, barrel OD D1, barrel collar D2, piston collar D3, length L — PDF — manufacturer datasheet [verify license at link] — https://www.kdscientific.com/media/brochures/KDS%20Glass%20Syringe%20Datasheet.pdf\n- Tomopal: 2 mL glass syringe with metal Luer lock, part 140-4002 (piston OD 6.45, D1 9.95, D2 16.40, D3 12.25, L 115.00) — PDF — manufacturer datasheet [verify license at link] — https://www.tomopal.com/document/140-4002.pdf\n- Tomopal: 50 mL glass syringe, part 140-4550 (piston OD 27.45, D1 32.35, D2 44.00, D3 34.05, L 178.00) — PDF — manufacturer datasheet [verify license at link] — https://www.tomopal.com/document/140-4550.pdf\n- BD: Disposable syringes technical data sheet: Luer tip Ø3.925–4.027 at the end, 6 % taper, 7.5 mm long minimum (ISO 594-1/-2), tip bore Ø1.2 minimum (ISO 7886-1) — PDF — manufacturer datasheet [verify license at link] — https://www.bd.com/content/dam/bd-assets/na/medication-delivery-solutions/documents/materials-safety-data-sheet/bd-2189-disposable-single-use-syringes-technical-data-sheet.pdf\n- Vanderbilt University (syringe-pump table): Syringe Diameters: Glass (Popper) 1 mL 4.50, 2 mL 8.92, 3 mL 8.99, 5 mL 11.7, 10 mL 14.7, 20 mL 19.6, 30 mL 22.7, 50 mL 29.0 mm — PDF — reference table [verify license at link] — https://lab.vanderbilt.edu/wp-content/uploads/sites/59/2025/08/Syringe-Diameters.pdf\n- Wikipedia: Syringe — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Syringe\n- Long Earth Society: Engine builds — web, video — LES site — https://longearthsociety.com/engineering/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 14 parts): https://xemstudio.com/files/hardware/glass-syringes/index.json\nAPI: https://xemstudio.com/api/geometry?object=glass-syringes\n",
 "sources": [
  {
   "publisher": "KD Scientific",
   "title": "Full Line of Glass Syringes, rev. A (order codes 78-0871 to 78-0880): piston OD, barrel OD D1, barrel collar D2, piston collar D3, length L",
   "url": "https://www.kdscientific.com/media/brochures/KDS%20Glass%20Syringe%20Datasheet.pdf",
   "formats": [
    "PDF"
   ],
   "license": "manufacturer datasheet",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Tomopal",
   "title": "2 mL glass syringe with metal Luer lock, part 140-4002 (piston OD 6.45, D1 9.95, D2 16.40, D3 12.25, L 115.00)",
   "url": "https://www.tomopal.com/document/140-4002.pdf",
   "formats": [
    "PDF"
   ],
   "license": "manufacturer datasheet",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Tomopal",
   "title": "50 mL glass syringe, part 140-4550 (piston OD 27.45, D1 32.35, D2 44.00, D3 34.05, L 178.00)",
   "url": "https://www.tomopal.com/document/140-4550.pdf",
   "formats": [
    "PDF"
   ],
   "license": "manufacturer datasheet",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "BD",
   "title": "Disposable syringes technical data sheet: Luer tip Ø3.925–4.027 at the end, 6 % taper, 7.5 mm long minimum (ISO 594-1/-2), tip bore Ø1.2 minimum (ISO 7886-1)",
   "url": "https://www.bd.com/content/dam/bd-assets/na/medication-delivery-solutions/documents/materials-safety-data-sheet/bd-2189-disposable-single-use-syringes-technical-data-sheet.pdf",
   "formats": [
    "PDF"
   ],
   "license": "manufacturer datasheet",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Vanderbilt University (syringe-pump table)",
   "title": "Syringe Diameters: Glass (Popper) 1 mL 4.50, 2 mL 8.92, 3 mL 8.99, 5 mL 11.7, 10 mL 14.7, 20 mL 19.6, 30 mL 22.7, 50 mL 29.0 mm",
   "url": "https://lab.vanderbilt.edu/wp-content/uploads/sites/59/2025/08/Syringe-Diameters.pdf",
   "formats": [
    "PDF"
   ],
   "license": "reference table",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Wikipedia",
   "title": "Syringe",
   "url": "https://en.wikipedia.org/wiki/Syringe",
   "formats": [
    "web"
   ],
   "license": "CC BY-SA 4.0 (text)",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Long Earth Society",
   "title": "Engine builds",
   "url": "https://longearthsociety.com/engineering/",
   "formats": [
    "web",
    "video"
   ],
   "license": "LES site",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "plastic-syringes",
  "glass-syringe-plunger-clevis",
  "list-ltd-mug",
  "list-test-tube-marble-engine",
  "silicone-tube",
  "syringe-cradle"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [
  {
   "feature": "ground-glass plunger in the barrel bore",
   "exact": "Ø4.80 / 6.45 / 12.60 / 15.15 / 20.40 / 22.90 / 27.45 (plunger = bore)",
   "mates": "its own barrel (matched pair)",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "male Luer cone",
   "exact": "Ø3.925 → Ø4.375 × 7.5 (6 % taper, ISO 594-1)",
   "mates": "female Luer, or a 4 mm ID tube stretched over it",
   "fit": "press",
   "files": "glass-syringe-"
  },
  {
   "feature": "barrel OD in a holder",
   "exact": "Ø8.30 / 9.95 / 15.40 / 18.35 / 24.20 / 27.30 / 32.35",
   "mates": "socket or ring drawn at the barrel OD",
   "fit": "socket",
   "files": "glass-syringe-"
  },
  {
   "feature": "piston collar",
   "exact": "Ø11.50 / 12.25 / 17.25 / 19.95 / 24.65 / 27.95 / 34.05",
   "mates": "plunger clevis pocket",
   "fit": "slide",
   "files": "glass-syringe-"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. Typical FDM: hole +0.0 to +0.1 mm on diameter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. Typical FDM: +0.2 mm.",
  "run": "turns or slides in use: pin in a link, rod through a guide. Typical FDM: +0.3 mm.",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. Typical FDM: +0.3 mm.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "What is the bore of a 10 mL glass syringe?",
   "a": "15.15 mm in the KD Scientific / Tomopal series (barrel OD 18.35, 128.50 long); Popper Micro-Mate glass is quoted at 14.7 mm by syringe-pump tables. Brands differ, so check which one you have."
  },
  {
   "q": "Does a glass syringe fit a holder made for a plastic 10 mL syringe?",
   "a": "A 5 mL glass barrel (Ø15.40) slides into a Ø15.9 plastic-syringe socket with 0.5 mm play; a 10 mL glass barrel (Ø18.35) does not fit. Use a holder drawn at the glass barrel's own OD."
  },
  {
   "q": "Why use a glass syringe as a Stirling power piston?",
   "a": "The ground-glass plunger runs in its barrel with almost no friction and no seal ring, which is what a low-temperature or marble engine needs."
  },
  {
   "q": "Which glass syringe sizes are on this page?",
   "a": "1, 2, 5, 10, 20, 30 and 50 mL, each as a barrel file and a plunger file. 3 mL is not drawn: no datasheet with its outside sizes was found."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "glass-syringe-1ml-barrel",
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    "step",
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   ],
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-1ml-barrel.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-1ml-barrel.stl",
   "note": "1 mL all-glass syringe barrel: bore Ø4.80, OD Ø8.30, collar Ø14.95, 115.00 long tip end to collar top (published, KDS 78-0871); Luer cone Ø3.925→Ø4.375 × 7.5 (ISO 594); end wall 1.75, collar 3 thick, flats and Luer-lock collar not drawn"
  },
  {
   "file": "glass-syringe-1ml-plunger",
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-1ml-plunger.stl",
   "note": "1 mL ground-glass plunger: Ø4.80 (= the bore, published), collar Ø11.50 (published); rod 105.75 long (= bore depth) and collar 3 thick drawn"
  },
  {
   "file": "glass-syringe-2ml-barrel",
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   ],
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   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-2ml-barrel.stl",
   "note": "2 mL all-glass syringe barrel: bore Ø6.45, OD Ø9.95, collar Ø16.40, 115.00 long tip end to collar top (published, KDS 78-0872); Luer cone Ø3.925→Ø4.375 × 7.5 (ISO 594); end wall 1.75, collar 3 thick, flats and Luer-lock collar not drawn"
  },
  {
   "file": "glass-syringe-2ml-plunger",
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   ],
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   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-2ml-plunger.stl",
   "note": "2 mL ground-glass plunger: Ø6.45 (= the bore, published), collar Ø12.25 (published); rod 105.75 long (= bore depth) and collar 3 thick drawn"
  },
  {
   "file": "glass-syringe-5ml-barrel",
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    "stl"
   ],
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   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-5ml-barrel.stl",
   "note": "5 mL all-glass syringe barrel: bore Ø12.60, OD Ø15.40, collar Ø22.25, 105.00 long tip end to collar top (published, KDS 78-0873); Luer cone Ø3.925→Ø4.375 × 7.5 (ISO 594); end wall 1.40, collar 3 thick, flats and Luer-lock collar not drawn"
  },
  {
   "file": "glass-syringe-5ml-plunger",
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   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-5ml-plunger.stl",
   "note": "5 mL ground-glass plunger: Ø12.60 (= the bore, published), collar Ø17.25 (published); rod 96.10 long (= bore depth) and collar 3 thick drawn"
  },
  {
   "file": "glass-syringe-10ml-barrel",
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   ],
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   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-10ml-barrel.stl",
   "note": "10 mL all-glass syringe barrel: bore Ø15.15, OD Ø18.35, collar Ø26.20, 128.50 long tip end to collar top (published, KDS 78-0874); Luer cone Ø3.925→Ø4.375 × 7.5 (ISO 594); end wall 1.60, collar 3 thick, flats and Luer-lock collar not drawn"
  },
  {
   "file": "glass-syringe-10ml-plunger",
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    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-10ml-plunger.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-10ml-plunger.stl",
   "note": "10 mL ground-glass plunger: Ø15.15 (= the bore, published), collar Ø19.95 (published); rod 119.40 long (= bore depth) and collar 3 thick drawn"
  },
  {
   "file": "glass-syringe-20ml-barrel",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-20ml-barrel.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-20ml-barrel.stl",
   "note": "20 mL all-glass syringe barrel: bore Ø20.40, OD Ø24.20, collar Ø33.25, 145.50 long tip end to collar top (published, KDS 78-0875); Luer cone Ø3.925→Ø4.375 × 7.5 (ISO 594); end wall 1.90, collar 3 thick, flats and Luer-lock collar not drawn"
  },
  {
   "file": "glass-syringe-20ml-plunger",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-20ml-plunger.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-20ml-plunger.stl",
   "note": "20 mL ground-glass plunger: Ø20.40 (= the bore, published), collar Ø24.65 (published); rod 136.10 long (= bore depth) and collar 3 thick drawn"
  },
  {
   "file": "glass-syringe-30ml-barrel",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-30ml-barrel.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-30ml-barrel.stl",
   "note": "30 mL all-glass syringe barrel: bore Ø22.90, OD Ø27.30, collar Ø37.55, 163.00 long tip end to collar top (published, KDS 78-0876); Luer cone Ø3.925→Ø4.375 × 7.5 (ISO 594); end wall 2.20, collar 3 thick, flats and Luer-lock collar not drawn"
  },
  {
   "file": "glass-syringe-30ml-plunger",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-30ml-plunger.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-30ml-plunger.stl",
   "note": "30 mL ground-glass plunger: Ø22.90 (= the bore, published), collar Ø27.95 (published); rod 153.30 long (= bore depth) and collar 3 thick drawn"
  },
  {
   "file": "glass-syringe-50ml-barrel",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-50ml-barrel.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-50ml-barrel.stl",
   "note": "50 mL all-glass syringe barrel: bore Ø27.45, OD Ø32.35, collar Ø44.00, 178.00 long tip end to collar top (published, KDS 78-0877); Luer cone Ø3.925→Ø4.375 × 7.5 (ISO 594); end wall 2.45, collar 3 thick, flats and Luer-lock collar not drawn"
  },
  {
   "file": "glass-syringe-50ml-plunger",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-50ml-plunger.step",
   "stl": "https://xemstudio.com/files/hardware/glass-syringes/glass-syringe-50ml-plunger.stl",
   "note": "50 mL ground-glass plunger: Ø27.45 (= the bore, published), collar Ø34.05 (published); rod 168.05 long (= bore depth) and collar 3 thick drawn"
  }
 ],
 "markdown": "https://xemstudio.com/objects/glass-syringes/index.md"
}