Carbon steel, qq-s-637, comp 1116 to 1119; cadmium plated, qq-p-416 type 2, class 2 or zinc plated, qq-z-325 type 2, class 2; 0.844 in. Lg, 0.387 in.Min, 0.395 in.Max smallest id, 0.875 in.Od, 0.562 in.Dia of 0.312 lg slot located 0.094 in.From end with smallest id