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 5925-01-025-0322
NSN 5855-01-159-1654
NSN 5855-00-327-2112
NSN 5855-01-034-3845
NSN 5915-00-973-1322
NSN 5920-01-300-3646
NSN 5990-01-527-7640
NSN 5965-01-657-6528
NSN 6645-01-495-0939
NSN 5945-01-294-2256
NSN 5975-01-341-9839
NSN 6650-00-698-5869