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 6240-00-713-0237
NSN 4140-01-005-0154
NSN 5990-00-734-7285
NSN 5996-01-121-5949
NSN 4140-01-053-2027
NSN 6135-00-951-3426
NSN 6220-01-218-0847
NSN 6685-01-156-3929
NSN 5905-01-508-2219
NSN 6320-00-593-0379
NSN 6645-01-437-9017
NSN 5935-00-484-7657