"STEEL,AMS6382,ROCKWELL C SCALE 23 MAX HARDNESS,BLACK OXIDE FINISH,AMS2485,63 MICROINCH SURFACE FINISH OD,0.240 IN. MIN,0.245 IN. MAXLARGEST OD,0.029 IN. MIN,0.034 IN. MAX DIA BORE,0.090 IN. NOM DIA BY0.490 IN. NOM DEPTH COUNTERBORE,0.610 IN. NOM O/A LG,GROOVED ON LARGEST OD,0.100 IN. NOM W,0.147 IN. MIN,0.149 IN. MAX GROOVE DIA,0.110 IN. NOM LGFROM LARGEST OD END TO CENTER OF GROOVE"