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 5960-01-080-8451
NSN 6620-00-290-6505
NSN 6610-01-196-6388
NSN 6645-01-492-5304
NSN 5975-00-689-6396
NSN 7035-01-077-4155
NSN 6620-00-411-4983
NSN 6685-01-432-2579
NSN 5855-01-539-4296
NSN 6645-01-509-3221
NSN 5965-01-003-2641
NSN 6110-01-251-1545