Luer connectors (ISO 594 / ISO 80369-7): 6% taper dimensions, male and female Luer slip and Luer lock, + true-size taper gauges

length

16.0 mm

width

16.0 mm

height

9.5 mm

Notes

• A Luer taper is a 6 % conical fitting: the diameter grows by 0.06 mm for every mm of length (0.06:1; a 6 % taper, not a six-degree cone). ISO 594-1:1986 gives, for a male fitting, the reference diameter d min 3.925 mm at the end (d max 3.990 mm rigid, 4.027 mm semi-rigid) and a length E of at least 7.5 mm; for a female fitting, the opening diameter D 4.270 to 4.315 mm and a depth F of at least 7.5 mm. ISO 594-1 has been replaced for new designs by ISO 80369-7 (small-bore connectors for intravascular or hypodermic use) which restates the male and female limits at other measuring planes; the limits are in the table as a gauge maker lists them. The copy of ISO 594-1 read is garbled in the tolerance row of the table (the letter M for the female engagement tolerance is inferred from a footnote), so the engagement tolerance rows M and N are left out.
• The 80369-7 limits are not directly comparable with the 594-1 ones, because they sit at other measuring planes: its male d is 3.970 – 4.072 mm (semi-rigid) and its female D 4.198 – 4.298 mm. The 80369-7 table is a third-party summary, not the standard; check the standard before using it for a compliance decision. The summary does not state the planes themselves.
• Luer lock (ISO 594-2): the same cone, plus a double-start right-hand thread with 2.5 mm pitch (5 mm lead) on the female (lugs or external thread) and a collar on the male. The lock dimensions in the table are the ones that agree between the iTeh sample pages (OCR) and Thread Check's table. The male thread root and crest diameters (H, J) and the outside diameter across lugs (2X) differ between the two copies (for example 2X 7.83 in one and 7.33 in the other) or are unreadable, so they are not shown. The lock thread and lug are not drawn: no profile is published as numbers in a source read.
• Files are three gauges, not syringes: (1) a male cone, Ø3.925 at the tip end growing at 6 % over 7.5 mm to Ø4.375, on a Ø10 handle; (2) a female socket with the opening at Ø4.270 (D min) closing at 6 % over 7.5 mm to Ø3.820; (3) the same socket at the opening Ø4.315 (D max, bottom Ø3.865). The cone numbers are ISO 594-1's; handle, hub, flange and the straight relief bore behind the cone are Xem's choices. A real Luer part also has a bore, a collar or a hub that this page does not define; for a syringe with its Luer tip see plastic-syringes and glass-syringes.
• Barb adapters, tube sizes: luer-to-barb-adapters. Silicone, PU and push-fit tube: silicone-tube-and-fittings. Maker CAD: Qosina publishes models of its Luer parts for registered users; linked, not copied.

Luer connectors (ISO 594 / ISO 80369-7): 6% taper dimensions, male… size chart

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.

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Free files

★ Free files 3 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

Plain text: sheet.txt · JSON: /api/geometry?object=luer-connectors-iso-594-80369-7

Fits with

Free

Plastic syringes 1–60 mL as pistons and cylinders7 sizes★ 7 filesFree

Glass syringes 1–50 mL (all-glass, ground-glass plunger): barrel and plunger8 sizes★ 14 filesFree

Silicone tube 1 × 3 to 10 × 14 mm (ID × OD)8 sizes★ 11 filesFree

Luer lock and Luer slip to barb adapters: tubing ID sizes 1/16 to 1/4 in (Nordson Value Plastics, Qosina), male and female21 sizes★ sheetFree

Aquarium airline tubing and fittings: 3/16 in vs 4 × 6 mm, check valves, connectors and Luer barb match5 sizes★ sheetFree

90° elbow for 4 × 6 mm tube18.0×18.0×10 mm★ 1 file