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 4140-01-448-0733
NSN 6620-00-021-2246
NSN 6320-00-313-9114
NSN 6610-01-331-6966
NSN 5930-01-125-0067
NSN 6240-01-019-1997
NSN 5910-01-174-6374
NSN 7035-00-541-8516
NSN 6220-01-422-9707
NSN 5999-01-341-2972
NSN 5910-01-534-4694
NSN 6240-01-449-1387