2 slots in right end surface of flange, 0.0250 in. deep, 0.0250 in. radius, 1 hole 0.0630 in. dia. located 0.6250 in. from centerline, od surface of body plastic coated 0.0400 in. max from right end surface of left flange to 0.0400 in. max from right end surface of body zinc surface treated