Case hardened rockwell c 36-40
No other part numbers with same form, fit, and function found.
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 7035-01-354-7056
NSN 6130-01-272-9007
NSN 6145-01-236-2678
NSN 6150-00-419-0505
NSN 6130-01-649-3535
NSN 7035-00-270-5519
NSN 6145-01-462-1120
NSN 6610-01-141-7014
NSN 5835-01-528-7454
NSN 5945-01-459-9933
NSN 6610-01-284-0009
NSN 5990-01-400-3299