6 RW

What is the nominal o.d. (mm) for 6 RW?

For 6 RW, nominal o.d. (mm) is 5.15; nominal i.d. (mm) is 4.39; wall thickness (mm) is .381, verified against its source on 2026-08-27.

6 RW 5.15 5.13/5.18 .381 4.39 4.32/4.47

— nesmalltube.com, retrieved 2026-08-27