Plastic per mil spec mil-p-18177,type gee,1.750 in. Lg,1.060 in. W,0.062 in. Thk,two 0.140 in. Dia holes spaced 0.750 in. C to c 0.380 in. From right end,two 0.060 in. By 0.310 in. Slots spaced 0.750 in. C to c 0.560 in. From right end,six 0.109 in. Holes irregulary spaced,two 0.328 in. Holes spaced 0.430 in. C to c