Largest shoulder has 2 each threaded holes through 0.110 inches diameter, no.6-32 nc-3b csk 90 degrees x .16 di (underside)
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 5960-01-024-7918
NSN 5950-01-279-0197
NSN 5945-00-932-3335
NSN 5985-01-157-7130
NSN 6145-01-429-2837
NSN 5925-00-932-3027
NSN 5950-01-288-1845
NSN 5925-01-641-6549
NSN 6650-00-418-2129
NSN 6105-01-422-2752
NSN 6240-00-237-7878
NSN 6150-01-539-2733