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 6610-01-141-7014
NSN 6240-01-655-1352
NSN 6220-00-852-0367
NSN 5965-01-223-3307
NSN 6610-01-325-4784
NSN 6220-01-003-1929
NSN 5999-01-634-0576
NSN 5835-01-555-8963
NSN 6220-01-410-8592
NSN 5985-00-123-2565
NSN 6150-01-472-5697
NSN 6620-00-570-9774