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 5998-00-243-6909
NSN 5905-01-629-2963
NSN 5996-01-087-0414
NSN 5910-00-156-0993
NSN 5855-00-494-9581
NSN 6645-01-505-3839
NSN 6650-01-633-9147
NSN 4140-01-390-5258
NSN 5925-00-509-8773
NSN 6135-00-231-7257
NSN 5920-01-363-9397
NSN 6220-00-751-9709