Aluminum alloy qq-a-270 or qq-a-325 6061-t6; 0.465 in. Lg; 1.000 in. Od flange; 0.440 in. Min 0.460 in. Max od body; 0.030 in. Thk flange; 0.126 in. Diameter through hole counterbored 0.356 in. Diameter 0.415 in. Deep; two 0.151 in. Diameter mtg holes spaced 0.807 in. C to c