Groove in center of shaft
A straight shaft having two or more of the following conditions: a specified surface finish designation in the range of 1 to 125 microinches (o.O25 to 3.2 micrometers), arithmetical average (aa), machined peripheral flat(s), circular groove (s), keyway(s), splines, threads, or holes. It is not designed for use in aligning by fitting into corresponding holes of another item. It may be drilled for lubricating holes. For items having an integral gear(s) or worm(s), see gearshaft (as modified). For items designed to support rotating members see axle(1), straight. For items not having the above conditions see pin, straight, headless. For items having machined ends which constitute steps see shaft(1), shouldered; axle(1), shouldered; and bolt, fluid passage.
Classification: Transmission shafts and cranks, except camshafts and crankshafts
NSN 5990-01-305-8121
NSN 6105-01-270-9740
NSN 6240-01-631-6116
NSN 5990-00-382-5885
NSN 5835-00-707-6266
NSN 6135-01-215-1245
NSN 6135-01-008-4595
NSN 6645-01-408-6568
NSN 4140-00-256-1471
NSN 6320-01-440-8771
NSN 2925-01-424-0235
NSN 5925-01-413-4997