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 4140-01-525-2201
NSN 6240-00-357-7976
NSN 2925-01-288-0971
NSN 6320-00-593-0379
NSN 5925-01-191-4068
NSN 6620-01-420-8666
NSN 6150-01-607-2138
NSN 5998-00-222-5293
NSN 5855-01-350-5540
NSN 6620-01-378-5579
NSN 5915-00-960-4786
NSN 6135-00-968-8594