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 6220-01-213-0177
NSN 6685-01-381-7207
NSN 6610-01-191-9673
NSN 6110-01-202-8009
NSN 6650-01-631-9625
NSN 5998-00-918-4774
NSN 5990-01-443-2931
NSN 5915-01-044-3661
NSN 6135-01-617-0253
NSN 6105-01-440-9444
NSN 7035-01-633-9537
NSN 6220-00-343-0182