3.6300" overall length inside dia counterbored left end, 0.8750 in.; flange flat one side, 0.6000 in. min, 0.6100 in. max from center cadmium surface treated 21c solid, external flange
1.0307" overall length groove optional on od, 0.062 in.max w; 0.005 in. max deep; id protected with mil-c-16173 grade 2 cadmium left end surface of body surface treated 22c solid, external flange one end