Both ends no. 18 bell center 0.750 in. Dia
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 6610-01-007-0268
NSN 5935-00-553-3423
NSN 5925-01-574-6552
NSN 6150-01-073-4727
NSN 6610-01-327-3187
NSN 5910-00-321-0229
NSN 5835-00-177-2970
NSN 5835-01-435-4139
NSN 2925-01-454-2046
NSN 6240-01-040-5530
NSN 7035-01-561-4351
NSN 6240-01-465-9713