Special Features:

Finish e211 per mil-f-14072; chamfer 0.0150 deep at 45.0 degrees angle; shaft body is 0.3125 in. Square; 7.8125 in. Lg; shaft has three 6-40 threaded holes spaced 3.375 in. C to c; shaft ends heat treated to rockwell c 50-58

Properties:

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.