Material 0.187 in. Thk aluminum alloy sheet 6061-t6 per qq-a-250/11, finish chemical film golden yellow per mil-c-5541 class 1a, length 3.630 in., width 0.281 in., height 0.380 in., 2 no.4-40 unc-2b holes spaced 3.375 in. C to c-0.125 in. From each end