Both end internal splines
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 5920-01-634-0250
NSN 5895-00-734-5401
NSN 5999-01-075-6165
NSN 5835-00-284-0882
NSN 6130-01-190-9526
NSN 6610-01-381-3181
NSN 7035-00-483-8630
NSN 5895-00-372-5493
NSN 6110-00-438-3859
NSN 5985-01-078-6019
NSN 5945-01-068-4471
NSN 6645-01-503-8211