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 5950-00-773-9958
NSN 5895-01-100-1825
NSN 5910-01-144-9946
NSN 6685-01-352-1641
NSN 5965-01-391-1703
NSN 6240-00-910-3297
NSN 5835-01-424-3663
NSN 5990-00-860-1960
NSN 5999-01-215-1236
NSN 6110-01-274-8039
NSN 6645-00-420-5072
NSN 6650-00-629-3262