Matl aluminum alloy, qq-a-268, 24s, t4; finish anodic film, mil-std-171, 7.1.1; 0.630 in. O/a lg; 0.610 in. O/a w; 0.120 in. O/a thk; one 0.106 diameter hole through with counterbore 0.010 in. X 45 deg, 0.234 in. Diameter centrally located along lg and w
