Used on tf-33 aircraft engine. matl steel, AMS6322; hardness RC35.0-40.0; nickel cadmium plate, AMS2416 modified per pwa-s-7452, fs; length 18.090-18.102; largest od 0.740-0.760 six lands 0.4330-0.4345 in.; five grooves 0.350-0.360 in.; 0.4375-20 ns pitch dia. 0.4024-0.4050 in. one end; used on the compressor rotor-front
