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 4140-01-156-0445
NSN 6105-00-883-4602
NSN 4140-00-313-2358
NSN 6130-01-582-1790
NSN 6685-01-135-4357
NSN 6150-01-599-3264
NSN 5990-01-393-4808
NSN 5950-01-526-9562
NSN 6240-01-562-4193
NSN 5905-01-337-6958
NSN 5975-01-347-0101
NSN 5998-00-409-9479