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 6620-00-505-5031
NSN 2925-01-550-0177
NSN 5985-00-293-8322
NSN 5910-01-083-4103
NSN 4140-01-261-4741
NSN 5945-01-107-9800
NSN 6650-01-163-1849
NSN 6135-00-078-9931
NSN 6610-01-323-0901
NSN 5915-01-023-9204
NSN 6685-01-247-8355
NSN 5855-01-429-8702