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 5935-01-178-0303
NSN 4140-00-059-7101
NSN 5999-00-299-0840
NSN 5935-01-449-1269
NSN 5998-00-475-0222
NSN 6610-00-236-2219
NSN 6645-01-633-1852
NSN 7035-01-167-2241
NSN 4140-01-009-5166
NSN 6130-00-975-7200
NSN 6645-01-365-0978
NSN 6645-01-483-1518