Used on 2320-01-540-2038; truck utility. 0.625" inside diameter 0.050" major thickness external ring style e-style black phosphate steel external retaining ring phosphate surface treated
Used on 2320-01-437-6957 armored security vehicle. 0.875" outside diameter internal ring style 250000.0 pounds per square inch tensile strength rating rockwell hardness C47-C52; bore dia 7/8", type internal with snap style zinc surface treated