2nd end thds no.6-40 unf-2a
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 6135-01-621-0742
NSN 5915-01-067-9870
NSN 5925-01-076-6378
NSN 6110-01-024-2899
NSN 5999-01-328-4637
NSN 5950-01-582-4738
NSN 5990-00-292-5017
NSN 5895-00-938-0132
NSN 6320-00-400-8042
NSN 6110-00-188-9874
NSN 5920-01-454-0337
NSN 6145-00-860-9203