0.20 in. Thk sheet, aluminum alloy, 6061-t6; nine type 0.125 in. Lg by 0.030 in. W rectangular slots spaced 4 degrees apart on 8.750 in. Diameter bc; eight 0.125 in. Lg by 0.030 in. W rectangular slots unevenly spaced on 8.250 in. Diameter bc; one 0.125 in. Lg by 0.030 in. W rectangular slot on 3.875 in. Radius bc
