0.6165" overall length one half of flange 1.7812 in. radius other half 1.9062 in. radius, left end of bore counterbored 3.0000 in. min 3.0030 in. max dia by 1.0000 in. lg, right end of bore counterbored 2.9120 in. dia by 0.6250 in. lg cadmium surface treated 22c solid, external flange one end