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 6130-01-645-7766
NSN 5920-01-303-6841
NSN 6620-01-135-0090
NSN 5985-01-212-0894
NSN 6130-01-593-7658
NSN 5965-01-147-5655
NSN 6110-00-660-8708
NSN 5835-00-503-2608
NSN 5925-00-702-1924
NSN 6130-01-387-7652
NSN 6685-00-942-1794
NSN 6150-01-510-6565