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 6645-00-935-7046
NSN 5910-01-338-0936
NSN 6220-01-442-7282
NSN 4140-00-456-0902
NSN 5990-01-461-8969
NSN 5925-01-448-9162
NSN 5999-00-818-5592
NSN 6240-01-034-3297
NSN 5905-01-398-1231
NSN 5996-01-277-1501
NSN 6685-01-231-9583
NSN 7035-01-445-3563