Second end includes 3 circular shaped grooves
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 5975-01-116-2115
NSN 6685-01-412-6442
NSN 5935-01-364-3195
NSN 5935-00-111-5028
NSN 5996-01-209-5886
NSN 5996-00-516-9281
NSN 6620-01-275-2781
NSN 6240-00-003-6435
NSN 6105-01-256-7086
NSN 6220-01-199-9080
NSN 5910-01-616-5702
NSN 5950-01-285-8075