Material tungsten alloy high density /molding/, finish cadmium plate qq-p-416 ty ii light chromate class 1, distance between mounting hole centers 1.250 in. Nom, length 1.630 in. Nom, mounting hole quan type 2; mounting hole diameter 0.109 in. Nom, width 0.312 in. Nom, all internal and external corners 0.005 to 0.015 x 45 degrees chamfer or 0.005 to 0.015 radius