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 4140-00-538-1226
NSN 5990-01-346-8782
NSN 6645-00-829-8868
NSN 6610-01-397-1621
NSN 6240-00-737-2775
NSN 2925-01-067-4446
NSN 5925-00-217-6381
NSN 5920-01-017-3233
NSN 6320-01-094-2634
NSN 6685-01-383-7499
NSN 5895-01-101-1442
NSN 6645-00-551-8291