GENERAL CHARACTERISTICS ITEM DESCRIPTION | SEAMLESS STEEL,COPPER FLASH FINISH,6.120 IN O/A OD,5.812 IN FROM CENTERHOLE TO CENTER HOLE ON OUTSIDE RIM OF RING,4 0.128 IN HOLES ON OUTER RIM OF RING,0.562 IN O/A HEIGHT OF RING,0.281IN,SIZE 20 EXTERNAL THD,SIZE 16 INTERNAL THD,U/O AIM-4/AIM-26 FALCOM |