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 5910-00-554-1422
NSN 5915-01-108-1767
NSN 5915-01-059-1178
NSN 5925-01-393-1832
NSN 4140-01-641-4286
NSN 6645-01-367-2581
NSN 5990-01-486-2556
NSN 6220-01-488-8430
NSN 5999-01-070-8975
NSN 5998-01-586-9463
NSN 2925-01-506-6975
NSN 6135-00-583-3966