Splined shaft has groove towards center for retaining ring; nha p/n 000993-157; reference t.O. 35d5-3-8-41 wp998 00 fig 6 ind 10
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 5999-00-421-6677
NSN 6145-01-422-8603
NSN 6320-01-476-7702
NSN 5905-01-231-8791
NSN 5930-01-081-5932
NSN 5915-01-126-7198
NSN 5990-01-054-4255
NSN 6135-00-733-9665
NSN 6130-01-268-1703
NSN 6240-00-079-0112
NSN 6240-01-338-1773
NSN 6145-01-036-1510