0.3480" first hole diameter 3.4920" overall length 2 oil grooves on face of flange 1/8 in. wide by 1/16 in. deep, 180 deg apart 22c solid, external flange one end
3a thread class right-hand 2.1410" overall length 0.1897" bore diameter 24 thread quantity per inch groove 0.0460 in. min 0.0490 in. max w by 1.1200 in. lg on center of shank cadmium all external/exposed metal surfaces surface treated double row, staggered, ball unf thread series