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 5935-01-199-9929
NSN 4140-01-215-2191
NSN 6145-01-364-0074
NSN 6650-01-124-4314
NSN 6685-00-273-1618
NSN 6685-00-997-6372
NSN 6610-00-848-4764
NSN 5998-01-099-3258
NSN 5996-00-245-2581
NSN 6645-01-008-2720
NSN 5996-00-998-1519
NSN 6110-01-412-9334