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 6105-00-245-2587
NSN 6110-00-905-6148
NSN 4140-00-388-6829
NSN 6135-01-068-0119
NSN 5915-01-552-3324
NSN 2925-00-450-7783
NSN 6645-01-383-8139
NSN 5855-01-247-0012
NSN 6320-01-462-3555
NSN 5915-00-753-7553
NSN 6135-00-351-8606
NSN 5855-00-494-9581