Corrosion resistant steel per qq-s-766, class 301 or 302, 1/4 hard temper, 19.790 nom. In. Lg; 1.280 nom. In. Wd; consists of 6 gaskets 0.060 in. Thk; 6 gaskets 0.120 in. Thk; 2 screws; pan hd c-ross recessed; 2 washers, flat; 2 bolt retainers, pushnut; 2 rivnuts; welding and deburring as required; identificationmarkings per mil-std-130; zinc chromateplating per mil-p-8585; enamel alkyd lusterless black; 37038 per fed-std-595; adhesive electric tape, pressure sensitive 1.000 wd