Aluminum alloy, qq-a-250-11 6061 -t4, painted black enamel, fed standard 595 front and edges only, 5.750 in. Lg 0/a lg by 4.125 in. W, 3 holes 0.196 in. Dia, 5 holes 0.213 in. Dia, 1 hole 0.257 in. Diameter countersink, 1 hole 0.437 in. Diameter counterbore, 2 holes 0.125 in. Dia, 2 holes 0.406 in. Dia, 1 hole 0.500 in. Dia, 1 hole 0.169 in. Dia, 4 holes 0.169 in. Diameter countersink
