Steel, qq-s-626, composition 4140 or qq-s-685, composition 4130, rockwell c 25-32 hardness rating, cadmium plate per qq-p-416, type 2, class 1, 250 microinch finish, 6.25 in. Lg at bottom, 3.65 in. W rightside, 2.00 in. W left side, 4.38 in. Lg at top, four 0.250 in. Diameter holesat bottom spaced 5.250 in. By 0.750 in. Mtg centers 0.12 in. Thk, three0.625 in. Diameter holes at top, first hole spaced 3.200 in. Second holespaced 2.500 in. Third hole spaced 0.250 in. C to c with 2 bottom holesrh corner
