Second step has one woodruff keyway 0.148 in. W 0.160 in. Deep; largest diameter is flatted 0.630 in. Across flats
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 6135-01-046-6803
NSN 6685-01-033-1104
NSN 7035-01-434-6134
NSN 7035-00-470-4977
NSN 5910-01-487-5387
NSN 5998-00-216-8065
NSN 5965-01-451-1218
NSN 5855-01-433-2220
NSN 7035-00-108-4421
NSN 6610-00-583-1084
NSN 6240-01-558-4104
NSN 6110-01-572-5216