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 6240-00-138-3082
NSN 6130-01-643-2470
NSN 6110-01-345-7710
NSN 6145-01-181-5405
NSN 6110-00-618-4171
NSN 6620-00-243-7766
NSN 5835-01-123-8305
NSN 5915-00-269-4463
NSN 5965-01-147-5847
NSN 5990-00-170-4239
NSN 5998-01-132-8175
NSN 6320-01-344-6511