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 5905-00-203-0200
NSN 5999-01-421-3388
NSN 5945-01-552-1127
NSN 5960-01-612-9844
NSN 6150-01-489-5996
NSN 6645-00-183-8812
NSN 6220-00-963-4689
NSN 6620-00-983-4171
NSN 6220-01-435-7582
NSN 5915-00-761-1844
NSN 2925-00-915-1827
NSN 6130-01-532-0778