Has keyway at center
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 6145-00-008-1834
NSN 6220-01-602-0007
NSN 6650-00-862-2142
NSN 6320-01-526-5534
NSN 6150-00-382-0033
NSN 5999-01-321-8494
NSN 5945-00-972-4151
NSN 5915-01-381-2519
NSN 6135-01-370-9441
NSN 5960-00-615-5828
NSN 6110-00-879-0810
NSN 6240-01-581-7737