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 4140-01-237-4358
NSN 5998-01-395-2739
NSN 6145-01-347-0320
NSN 2925-00-005-1618
NSN 6220-01-045-9091
NSN 5930-01-499-1917
NSN 6685-01-131-4694
NSN 5915-01-643-8429
NSN 6110-01-272-9246
NSN 6650-01-519-3326
NSN 5985-00-269-5388
NSN 5960-01-089-7174