Special Features:

8first end second step 0.625-18unjf-3a thd 0.680 in. L; second end 3.35 in. L bore 0.484 in. Diameter w/cbore 0.6325 in. Diameter cham 60 degrees 0.680 in. Dia, internal spline 13 teeth, 0.5417 in. Pitch dia, 0.500 - 0.505 in. Minor dia, 0.6167 - 0.6257 in. Major dia

Properties:

A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes shaft(1), straight; and axle(1), straight.