See drawing for further details
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 6150-00-432-5668
NSN 6135-00-321-6707
NSN 5930-00-416-5563
NSN 5990-01-079-3271
NSN 6150-01-103-2498
NSN 7035-01-069-3537
NSN 5915-01-158-5602
NSN 5905-00-078-2446
NSN 5998-01-211-0236
NSN 6240-00-660-8849
NSN 2925-01-516-5113
NSN 5895-01-391-4554