Underwater life support iaw navsea instruction 10560.2b
A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes shaft(1), straight; and axle(1), straight.
Classification: Transmission shafts and cranks, except camshafts and crankshafts
NSN 5920-00-276-8657
NSN 6145-01-401-3713
NSN 5950-01-537-6320
NSN 6110-01-597-9936
NSN 5950-01-463-3096
NSN 6110-01-467-9915
NSN 5905-00-035-8981
NSN 5945-00-200-7616
NSN 5960-01-015-8655
NSN 6110-01-114-7701
NSN 7035-01-555-8289
NSN 5905-01-500-3246