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 5965-00-452-0967
NSN 5930-01-447-5832
NSN 6130-01-576-6344
NSN 6105-00-597-8580
NSN 5925-01-577-6903
NSN 6620-01-043-6424
NSN 5965-01-202-1007
NSN 5935-00-803-4540
NSN 6135-00-862-5736
NSN 5915-01-459-1329
NSN 6610-01-422-2376
NSN 5920-00-422-0757