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 4140-00-294-3654
NSN 6240-01-020-2063
NSN 5985-00-922-7715
NSN 5996-01-218-0522
NSN 5945-01-208-0047
NSN 6135-01-142-2417
NSN 5915-00-197-0874
NSN 6240-01-501-8865
NSN 5965-00-689-1545
NSN 6105-00-118-1508
NSN 6610-01-314-3659
NSN 6145-01-339-9684