2.920" outside diameter oeight holes equally spaced on 2.690 dbc are 0.140 in. min 0.145 in. maxdia, csk 80 deg min 82 deg max to 0.250 in. min 0.260 in. max dia; four holes also equally spaced on same dbc are 0.090 in. min 0.100 in. max dia nickel surface treated round
6.969" outside diameter 16 thread quantity per inch circumferential grease groove in aperture surface, 0.0625 in. deep, 0.125 in. wide, 0.375 in. from front face round unc thread series
