SEAMLESS STEEL TUBING ASTM A519 MTX1020 TO 1025;7.922/7.938 LG;2.750 DIA;2.310/2.312 COUNTERBORE DIA X 0.813/0.828 LG EACH END;63AA MICROINCH FINISH EACH COUNTERBORE;RING GROOVE 0.086/0.091 W X 2.436/2.446 DIA 0.188 FROM END EACH END;30 DEG X 0.063 LG COUNTERSINK EACH END;2.250 DIA X 7.562 LG ID