Flight safety critical
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 6135-01-113-1507
NSN 6620-01-234-1799
NSN 5960-00-681-0395
NSN 5925-01-468-6567
NSN 6130-01-450-9861
NSN 6240-00-787-8329
NSN 6220-00-918-4460
NSN 5975-01-508-3989
NSN 6320-01-397-9995
NSN 6320-01-631-7828
NSN 5985-01-430-2570
NSN 5895-01-205-6967