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 5960-00-146-5338
NSN 5935-00-654-6069
NSN 5920-01-444-1207
NSN 4140-01-406-5344
NSN 5990-01-384-2697
NSN 5998-00-658-3303
NSN 5996-01-532-5033
NSN 6620-01-494-9858
NSN 5855-01-176-9935
NSN 5950-01-161-9515
NSN 5925-01-088-6863
NSN 5998-01-605-5461