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 6220-00-880-7806
NSN 5996-01-643-9616
NSN 5930-01-069-3849
NSN 6645-01-395-4129
NSN 5905-01-049-0610
NSN 5960-01-461-9284
NSN 5965-01-299-8690
NSN 5996-01-167-9234
NSN 6130-01-607-5567
NSN 5996-01-497-5716
NSN 5930-01-012-0794
NSN 6220-01-423-1476