A flanged cylindrical item having a sharp cutting surface on the inside diameter at the end opposite the flange. The cutting edge, in use, is designed to imbed in the tubing due to pressure exerted when the outside diameter of the sleeve is forced into and against an angular seat. This firmly attaches the sleeve to the tubing and the flanged end then serves as a bearing surface for the coupling nut to bring the tubing into the mating fitting.
NSN 5950-00-353-1421
NSN 6110-01-433-4007
NSN 5920-01-167-9026
NSN 2925-01-250-2731
NSN 5905-01-426-0065
NSN 5975-00-420-4473
NSN 5960-01-434-5539
NSN 5975-01-022-9713
NSN 5935-01-338-8105
NSN 6220-00-966-7528
NSN 5990-01-430-3152
NSN 2925-01-043-9786