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 5920-01-360-4504
NSN 5960-01-586-2954
NSN 2925-00-139-8309
NSN 5999-01-027-0773
NSN 6220-01-561-9772
NSN 5855-01-573-5035
NSN 5985-01-281-5207
NSN 5835-01-021-6114
NSN 6105-00-240-6933
NSN 5835-01-214-0522
NSN 4140-00-128-8072
NSN 6645-01-168-8465