6.710" inside diameter 7.270" outside diameter 0.060" major thickness straight gap ring style six radius places equally placed on ring, vary radius so that there will be smooth junctures with adjacent reversed curves with no flatness or sharpness
2.950" inside diameter 3.450" outside diameter 0.113" major thickness special flat ring style 211000.0 pounds per square inch tensile strength rating cadmium surface treated