0.2010" fifth hole diameter 2.3120" overall length two holes 0.250-20 unc thread 0.500 in. deep 17c-1 solid, plain, no outside flanges, internal flange one end
3.8125" overall length end of id opposite keyway is counterbored; 1.5910 in. min, 1.5960 in. max dia; 0.1875 in. lg 17c solid, plain, no outside flanges
0.4980" overall length right end surface of left flange has one groove; bore has keyway 0.1875 in. wide, 0.1093 in. deep 22c solid, external flange one end