"STEEL,MIL-S-5626 COMP 4140 COND E,CHROMIUM PLATE PS1302CL A,7.580 IN. O/A DIA,0.151 IN. MIN TO 0.156 IN. MAX O/A THK,5.528 IN. O/A ID,315 DEG SEGMENT 6.130 IN. OD,45 DEG SEGMENT HAS6 HOLES 0.275 IN. DIA SPACED AS SHOWN,MACHINED SURFACES 125.0 RHR,HEAT TREAT 180000 TO 200000 PSI PER PS15027"