"Aluminum, 5052 temper H32, minimum thickness of 0.076 inches and maximum of 0.084 inches according to QQ-A-250/8 specifications; minimum length is 4.852 inches and maximum is 4.884 inches; dimensions are 0.700 inches in height, 1.225 inches in width, with four locations at 0.050 inches by 45 degrees"