Reference Source

22 RW

What is the nominal o.d. (mm) for 22 RW?

For 22 RW, nominal o.d. (mm) is 0.71; nominal i.d. (mm) is 0.41; wall thickness (mm) is .152, verified against its source on 2026-08-27.

22 RW 0.71 0.71/0.72 .152 0.41 0.39/0.43

nesmalltube.com, retrieved 2026-08-27

Gauge number
22 RW verified
Nominal O.D. (mm)
0.71 verified
Nominal I.D. (mm)
0.41 verified
Wall thickness (mm)
.152 verified
Sourcenesmalltube.com
Verified
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DatasetHypodermic needle gauge dimensions (OD, ID, wall thickness, dead volume)

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.