14.780" outside diameter four mounting holes on 12.750 in. dia bolt circle, 0.273 in. dia min to 0.282 in. dia max; 32.0 milroin finish od passivate surface treated round
1.280" outside diameter od of raised surface to have 63.0 microin fin.; mounting hole tabs each equidistant 0.344 in. above horizontal centerline anodize surface treated
0.970" outside diameter 40 thread quantity per inch 32.0 microin finish on id of cbore; 63.0 microin finish on od of raised surface anodize surface treated round unjc thread series