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 5990-01-277-2118
NSN 5920-01-336-7568
NSN 5855-01-479-8129
NSN 6135-01-100-3593
NSN 5920-00-351-8428
NSN 5915-00-409-9765
NSN 6650-01-037-1120
NSN 6240-00-777-4263
NSN 4140-00-619-1534
NSN 6610-00-943-5588
NSN 5990-01-516-9665
NSN 5990-01-164-0220