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 5945-01-537-0202
NSN 7035-00-117-0418
NSN 5925-00-624-9568
NSN 5965-01-429-0881
NSN 6320-01-441-1237
NSN 5999-00-958-2673
NSN 6610-01-103-4627
NSN 6620-01-176-6956
NSN 6150-00-069-5099
NSN 6650-00-170-5095
NSN 6105-01-528-8027
NSN 6645-01-329-9591