Two flats on 2nd end 180 deg
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 4140-01-626-4812
NSN 6130-01-080-1633
NSN 5950-00-115-3387
NSN 6240-00-275-1950
NSN 5998-01-121-7339
NSN 7035-01-457-0371
NSN 5990-00-212-4316
NSN 5930-01-177-1607
NSN 5985-01-632-5303
NSN 5960-01-056-4982
NSN 5975-01-652-3978
NSN 5835-01-512-4834