Shoulder on plain end threaded, 0.250 inch-20 uns-3a
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 5835-01-502-9228
NSN 6650-00-276-9838
NSN 6130-01-388-9694
NSN 4140-01-474-5701
NSN 6220-01-322-5660
NSN 5965-01-531-3496
NSN 5990-01-625-5923
NSN 5960-01-252-6331
NSN 7035-01-484-5416
NSN 6105-01-317-2434
NSN 5985-01-205-4756
NSN 5985-01-378-2096