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 6110-01-373-1587
NSN 5920-01-020-7659
NSN 5985-00-082-1317
NSN 5999-01-112-0492
NSN 5998-00-984-4063
NSN 5835-01-109-4775
NSN 6105-01-381-2496
NSN 6220-00-079-2943
NSN 5998-00-222-1248
NSN 5975-01-425-1268
NSN 5855-01-330-3669
NSN 6610-01-576-8955