"STEEL AMS6415 NO. 4340,CHROMIUM PLATE PS13102 CL B,5.290IN. O/A LG,4.9325 IN. MIN TO 4.9345 IN. MAX OD,3.000 IN. MIN TO3.002 IN. MAX BORE THRU,COUNTERBORE 3.360 IN. DIA 4.320 IN. DEEP,COUNTERBORE 4.160 IN. DIA 0.760 IN. DEEP,AS NOTED MACHINEDSURFACES 32.0 63.0 AND 125.0 RHR FINISH,HEAT TREAT 180000 TO200000 PSI PS15033,SHOT PEEN"