"STEEL MIL-S-5626 NO. 4140 CONDITION C4,2.440 IN. O/A LG,1.564 IN. MIN TO 1.569 IN. MAX O/A DIA,MACHINED SURFACES 125MICROINCH FINISH,4 SLOTS EQUALLY SPACED ON ONE END,6 SLOTS EQUALLYSPACED ON 2ND END,1.250-18 NEF-3A THRD 0.875 IN. LG 0.500 IN. FROM2ND END,HEAT TREAT 150000 TO 170000"