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 5915-00-727-2601
NSN 6240-01-157-9128
NSN 6220-00-719-7714
NSN 5999-01-167-7936
NSN 5905-00-737-0790
NSN 4140-01-135-3740
NSN 5905-01-053-2744
NSN 5996-00-953-3987
NSN 2925-01-209-9245
NSN 5925-01-119-3429
NSN 5965-01-364-1232
NSN 5915-01-520-8322