"4.950 IN. OD X 0.180 IN. LG FIRST END; 4.740 IN. MAX OD, 4.500 IN. MIN OD SECOND END; TWELVE HOLES EQUALLY SPACED, STAGGERED, 1.250 IN. DIA EA, IN THREE ROWS; 5.200 IN., 3.500 IN. AND 1.800 IN. FROM SECOND END; MACHINED SURFACES 6.30 AND 125.0 MICRO INCH FINISH"