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 4140-00-555-3856
NSN 6685-01-538-8338
NSN 6645-00-350-8070
NSN 5895-01-228-8342
NSN 6610-01-534-8075
NSN 5915-01-268-5260
NSN 5996-01-339-7539
NSN 5975-00-872-6131
NSN 6650-01-497-1773
NSN 5998-01-398-9113
NSN 6610-01-657-1773
NSN 5915-01-442-6484