"STEEL AMS6272;EXTERNAL SHOULDERES CASEHARDENED;ROCKWELL C CORE HARDNESS 26-39;2.203 IN. MIN 2.213 IN. MAX LG;0.5994 IN. MIN 0.5996 IN. MAX OD OF SHOULDERS;0.2517 IN. MIN 0.2522 IN. MAX BORE 1.755 IN. DEEP,COUNTERBORED 0.430 IN. MIN 0.440 IN. MAX DIA TO 1.205 IN. DEPTH"