Phosphor bronze per qq-b-750 spring temper; bright dip finish; 1.870 in. Nom. O/a dia; 0.040 in. Nom. Thk; one hole 0.500 in. Nom. Dia; one hole 0.375 in. Nom. Dia; 3 irregularly spaced holes, 0.125 in. Nom. Dia; 3 irregularly spaced holes, 0.040 in. Nom. Dia