11.505" inside diameter 12.460" outside diameter 0.182" major thickness internal ring style 2 bolt holes, 0.250 ins from opening, 0.195 ins dia cadmium surface treated
8.970" inside diameter 9.645" outside diameter 0.245" major thickness internal ring style 2 bolt holes, 0.450 ins from opening, 0.135 ins dia cadmium surface treated
3.877" inside diameter 4.501" outside diameter 0.108" major thickness special flat ring style 211000.0 pounds per square inch tensile strength rating cadmium surface treated