Used on mrap - buffalo a1; mrap buffalo mk2a2. 0.964" inside diameter 1.029" outside diameter 0.0422" major thickness external ring style retaining ring groove depth is 0.029"
Used on b-52 aircraft. 2.062" inside diameter 2.154" outside diameter 0.049" major thickness special flat ring style 45000.0 pounds per square inch yield strength rating