Aluminum, 6061-t6; per specification qq-a-225/8; anodic coating per mil-a-8625; 0.187 in. Thk; 1st leg 2.562 in. Lg, 1.625 in. W; 2nd leg 1.499 in. Lg, 0.875 in. W; 2 holes 0.203 in. Diameter 0.875 in. C to c on 2nd leg; 0.344 in. Diameter and 0.187 in. Diameter holes on 1st leg