0.311" hole diameter 0.387" outside diameter 0.023" material thickness split from the outside circumference to the washer hole passivate surface treated key
2.020" hole diameter 2.875" outside diameter 0.160" material thickness three wire holes countersunk 0.250 in. dia by 90 deg both sides, internal key with round bottom surface, two coat of polyurethane enamel color white edge only cadmium surface treated
1.005" hole diameter 1.380" outside diameter 0.090" material thickness chamfer outside edges 0.010 in. min, 0.040 in. max by 45 deg chromium surface treated key