A flanged cylindrical metallic item designed to be used on tubing to back up the flared end and to provide a bearing surface for the coupling nut, thereby reducing wear on the tubing flare. The inside diameter of the flanged end is countersunk to form a seat for the flare when assembled to a mating fitting.
NSN 5998-01-197-7915
NSN 6220-01-125-5748
NSN 5985-01-238-9509
NSN 5895-00-642-8889
NSN 6620-01-408-4464
NSN 5996-01-154-9046
NSN 5905-00-811-5169
NSN 6645-00-004-8628
NSN 5990-00-855-9451
NSN 7035-01-003-1944
NSN 5996-01-611-9657
NSN 5975-01-443-2398