Shaft helm main shaft helm unit
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 5996-01-472-7028
NSN 6320-01-486-8004
NSN 6150-01-111-2884
NSN 6240-01-279-0552
NSN 5975-01-010-6243
NSN 6240-01-410-8958
NSN 5905-01-344-7453
NSN 6135-00-235-1938
NSN 5985-01-581-3584
NSN 6610-01-247-6374
NSN 5920-00-527-9473
NSN 6220-01-185-4310