1material: aluminum alloy 5083 or 5086 per specification qq-a-200/4 or qq-a-200/5; finish no. 7.3.1 plus 21.9 of mil-std-171, color red; 3.310 in.Lg; 1.250 in. W; 0.120 in. Tk; two holes 0.220 diameter through, center to center distance between holes 0.500 in