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 5855-01-307-6638
NSN 6105-01-352-3848
NSN 5920-00-753-5113
NSN 5855-01-232-6883
NSN 6645-01-477-2532
NSN 5996-01-469-6165
NSN 6150-01-337-9782
NSN 5945-00-100-6269
NSN 5925-01-265-4679
NSN 5998-01-129-5527
NSN 6320-01-250-0290
NSN 6320-00-779-5923