Aluminum alloy, qq-a-225/6, anodized, 2.25 in. Lg, 1.9886 in. Min, 2.0000 in. Max o/a dia, 2-12un-3a thd, 1 groove 0.250 in. W by 0.174 in.Min, 0.178 in. Max deep, walls of groove 63 microinch and botton of groove32 microinch finish, four 0.050 in. Diameter through holes one wall, four 0.320in. Diameter by 0.21 in. Deep wrenching holes equally spaced on 1.250 in.Hole circle dia
