0.313 in. O/a lg; 0.240 in. O/a w, 0.120 in. O/a thk; one hole no. 56 (0.0465 in.) x 0.190 in. Dp no. 51 (0.067 in.) x 0.065 in. Dp, 0-80 nf-3 x 0.165 in. Dp located on top of bracket; one 0.0635 in. Diameter hole through with countersink 60 degrees incl angle x 0.025 in. Dp located perpendicular to lg