"COBOLT PER MIL-C-15345; 26.2680 IN MIN TO 26.7000 IN. MAX OD; 25.5180 IN. MIN TO 25.5200 IN. MAX ID; 0.3750 IN. FLANGE W; 5.8125 IN. OVERALL LG; 27.2500 IN. FLANGE DIA; OUTSIDE RIGHT CORNER,INSIDE RIGHT CORNER,INSIDE LEFT CORNER ALL CHAMFERED TO 0.0625 IN. AND 45.0 DEG; LEFT FLANGE BODY CORNER 1.25 RADIUS; 7 GREASE GROOVES AND 8 HOLES 0.2500 IN. ON OD"