3a thread class left-hand 1.5630" overall length 0.1895" bore diameter 32 thread quantity per inch chromium inner member surface treated ball type unf thread series
0.9760" overall length groove, located at flange width end, 0.109 in. radius, centrally located, v cut at 90 deg min, 92 deg max, groove to accommodate ball, 0.250 in. dia 22c solid, external flange one end
2a thread class right-hand 2.6800" overall length 0.4375" bore diameter 24 thread quantity per inch cadmium inner member surface treated flange type unf thread series
13.000" outside diameter 28 thread quantity per inch each lug 1.750 in.w by 0.469 in.lg, max suface finish all surface 90 uin aa; aperture shape round oxide surface treated unf thread series