"STEEL,CORROSION RESISTING,QQ-S-766,CLASS 304,CONDITION A; PASSIVATE,MIL-F-14072,E300; 3.375 IN. LONG; 1.5625 IN. WIDE; 1 HOLE CENTERED,1.035 IN. DIAMETER; 0.5625 IN. CORNER RADIUS BOTH ENDS; 4 THRU HOLES 0.221 IN. DIAMETER,0.360 IN. COUNTERBORE,0.21875 IN. DEEP"