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 6150-00-705-0302
NSN 6645-01-500-0827
NSN 6610-01-432-9964
NSN 5960-01-354-0762
NSN 5935-01-648-2696
NSN 5895-00-056-8573
NSN 5905-00-825-6567
NSN 4140-00-690-5288
NSN 6320-01-039-5891
NSN 6645-00-088-4079
NSN 6220-00-353-5730
NSN 6620-01-316-7907