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 6240-01-570-8070
NSN 6620-01-659-8887
NSN 5920-01-461-7676
NSN 5915-01-224-7044
NSN 5910-00-336-4525
NSN 5999-01-621-0442
NSN 5945-00-782-7924
NSN 6240-01-201-6306
NSN 2925-01-304-2127
NSN 2925-00-907-2709
NSN 5985-01-023-0618
NSN 6620-00-858-7317