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Gas springs and gas struts: rod / tube diameters, end threads, stroke and extended-length series (nb-parts, SUSPA 16-3, McMaster-Carr)
What stroke and extended lengths do common gas springs come in, and what thread and diameters do the common series use? · Standard part · 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
Also called: gas strut dimensions, gas spring stroke chart, lift support sizes, gas spring M8, gas spring 10 mm ball socket, Gasdruckfeder, gas spring extended length vs stroke, 8/19 gas spring, 10/22 gas spring, hood strut sizes
Exact dimensions. Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part. Mating features
- sizes
- 47 in table
Notes
- 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.
Gas springs and gas struts: rod / tube diameters, end threads… size chart
| 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. |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| end thread | M5, M6, M8, M10, M14, M14x1.5, M20x1.5, M24x2 (nb-parts series); M8 rod / M10 rod (McMaster 316 stainless) | end fitting (eyelet, ball socket, fork) with the same internal thread | designed | all |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
Xem scan
File coming
No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=gas-springs-series-and-strokes
Fits with
FreeGas spring end fittings: eyelet and fitting threads M3.5–M14, ball studs Ø8 / Ø10 / Ø13 (M4–M10), ball sockets and forks25 sizes★ sheetFree
Compression springs, wire Ø0.5–1.6, OD 6–165 sizes★ 5 filesFree
Double-acting Ø18 gas-spring cylinder, gland and piston for a 2 in spool5 sizes★ 3 filesFree
Clevis pins ISO 2341 B, Ø3 to Ø87 sizes★ 7 filesFree
RAM-style mount ball sizes: A 0.56, B 1, C 1.5, D 2.25 and E 3.38 in5 sizes★ 5 filesFree
17 mm ball joint for phone mounts (ball stud)4 sizes★ 1 file
Questions
What is the stroke range of a 10/22 gas spring?
nb-parts lists the GF 10/22 M8 at 75–400 mm stroke (the version with welded eyelets 250–1150 mm); SUSPA's 8 mm rod, 21.5 mm tube spring has M6 rod and M8 tube end threads.
What thread does an 8 mm rod gas spring have?
SUSPA type 16-3 (rod Ø8): rod end M6 x 1.0 and tube end M8 x 1.0. nb-parts' GF 8/19 is listed with M6 and McMaster's 316 stainless 0.38 in rod has an M8 thread.
How much longer is a gas spring when extended?
By its stroke: McMaster lists extended = compressed + stroke (for example 8.26 in = 5.11 in + 3.15 in), before end fittings.