4.400" inside diameter 4.560" outside diameter c ring style two straight headless steel pins, ams 6415, attached to ring thru 0.096in. dia holes, pin 0.560 in. lg, 0.2500 in. od w/one end notched 0.070 in. lgby 0.079 in. deep
1.252" inside diameter 1.442" outside diameter 0.042" major thickness special flat ring style 211000.0 pounds per square inch tensile strength rating cadmium surface treated