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 5965-00-256-8687
NSN 2925-00-673-4564
NSN 5999-00-529-0157
NSN 5945-01-028-3112
NSN 5945-00-819-3083
NSN 2925-00-902-3881
NSN 5975-01-440-5808
NSN 5998-01-049-7739
NSN 7035-01-012-2259
NSN 6620-01-352-5640
NSN 6150-01-251-9333
NSN 5950-01-271-0020