Cover and stiffener material 6061-t6 al alloy per qq-a-250/11, 0.032 in. Thick; material of other cover 6061-0 al alloy per qq-a-250 /11, 0.032 in. Thick; screen material is square mesh wire cloth, 15 mesh, 0.010 in. Diameter wire, 1100 al, 67.9 percent open; size of item 17.500 in. Long; 2.880 in. Wide, 1.130 in. High
