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 4140-01-391-6462
NSN 5855-00-560-0110
NSN 6240-00-498-7669
NSN 2925-00-891-9289
NSN 6320-01-582-6668
NSN 5910-01-285-4358
NSN 5990-01-485-0260
NSN 5835-00-834-1286
NSN 5996-01-144-4691
NSN 5930-00-866-6888
NSN 5915-00-303-4168
NSN 5990-01-588-3999