Underwater life support iaw navsea instruction 10560.2b
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 5965-01-100-3878
NSN 6610-00-398-9673
NSN 5985-01-340-1043
NSN 5999-01-080-5341
NSN 5910-00-425-9337
NSN 4140-01-449-9037
NSN 6320-01-449-1014
NSN 6645-01-076-4655
NSN 5965-01-237-3342
NSN 7035-01-261-6779
NSN 5999-00-136-9545
NSN 5965-01-566-2744