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 5999-01-054-6696
NSN 5835-00-378-1429
NSN 5985-01-422-2552
NSN 6105-01-526-8402
NSN 6145-01-476-9375
NSN 6645-00-658-7838
NSN 6685-00-188-1991
NSN 6685-01-514-4543
NSN 5930-00-892-9714
NSN 6610-00-931-1291
NSN 5915-01-423-4642
NSN 4140-00-761-7761