Steel, corrosion resisting, qq-s-763, class 303se. Black oxide, mil-c-13924, class 2 on surfaces of flange and face of both ends. Dimensions, 1.796 in. Min, 1.812 in. Max. Flange dia, 1.718 in. Shoulder dia, 0.296 in. O/a lg, 0.218 in. Shoulder lg, 1.500 in. Tapered hole major dia, 16 deg, 35 min, 39 sec taper angle. Ring eccentrici type 0.015 in. From geometric axis. Slotted drive on periphery.
