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 4140-01-527-7878
NSN 5990-00-594-7291
NSN 5975-01-573-5716
NSN 6240-01-566-4629
NSN 6620-00-242-3237
NSN 5945-00-710-8704
NSN 5925-01-469-6667
NSN 6145-01-409-1685
NSN 5950-01-234-9277
NSN 6320-01-332-1977
NSN 5945-01-007-2424
NSN 6220-01-632-3192