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 6620-00-583-2687
NSN 6685-01-327-0795
NSN 6685-00-390-3665
NSN 5855-00-110-9341
NSN 6320-01-246-4390
NSN 4140-01-010-4305
NSN 5915-01-463-2090
NSN 6145-00-161-5415
NSN 2925-01-123-5856
NSN 4140-01-060-2960
NSN 6620-01-352-5640
NSN 6220-01-442-8545