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 5996-01-014-6103
NSN 5950-00-170-9103
NSN 5996-01-113-7960
NSN 5905-01-363-0629
NSN 5960-01-370-4285
NSN 6610-01-616-7998
NSN 5855-00-489-6754
NSN 6320-01-288-4783
NSN 5925-00-216-8767
NSN 6105-01-284-2620
NSN 5975-01-653-5606
NSN 5925-00-740-6835