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 5965-01-501-2390
NSN 6150-01-320-9019
NSN 6320-01-443-8676
NSN 6645-01-367-2581
NSN 5905-01-303-6236
NSN 5960-00-256-9989
NSN 5999-01-358-6531
NSN 5950-01-356-4051
NSN 6150-00-371-4620
NSN 5999-01-645-8412
NSN 6135-01-010-0891
NSN 5960-01-609-6565