"ALUMINUM ALLOY 7075 FED SPEC QQ-A-225/9 COND T7351; FIRST HOLE 2 HOLES 1N LINE DIA 0.2500 IN MIN AND 0.2508 IN MAX BEFORE ANODIZE,DIA AFTER ANODIZE 0.2405 IN MIN AND 0.2505 IN MAX; SECOND HOLE 2 HOLES IN LINE DIA 0.257 IN MIN AND 0.261IN MAX; THIRD HOLE DIA 0.2500 IN MIN AND 0.2522 IN MAX; WIDTH 1.110 IN MIN AND 1.130 IN MAX"