Material aluminum alloy sheet per qq-a-250/11, 6061-t6, 4.080 in. Min and 5.000 in. Max dia, 0.500 in. Nom thickness, 3.000 in. Nom diameter hole centrally located, 6 slots 0.310 in. Nom wide 60.0 degrees apart, 6 holes 0.186 in. Min and 0.196 in. Max diameter on 3.625 in. Diameter bolt circle 60.0 degrees apart, 1 hole 0.140 in. Nom diameter on 1.625 in. Radius
