"STEEL,HEAT TREAT 280000 TO 300000 PSI,125 UIN. MACHINED SURFACE,CYLINDRICAL SHAPE,12.180 IN. O/A OD FLANGE EDGE,11.800 PORM 0.001 IN. OD BODY,1.900 IN. H,INTERNAL INVOLUTE SPLINE DATA,10.0000 PITCH DIA,40 TOTAL TEETH,4/8 DIAMETRAL PITCH,30 DEG PRESSURE ANGLE,1ST END TOOTH FACED,2ND END 11.625-8 UNJS-3A THD BY 0.570 IN. LG"