hole dia 0.177 in. nom; length 2.735 in. nom; width 2.440 in. nom; outside corner radius 0.180 in. nom; aperture width 1.640 in. nom; aperture length 1.920 in. nom; center to center distance between bolt holes along width 2.080 in. nom; center to center distance between holes along length 2.375 in. nom; bolt hole quantity 4