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 6145-00-179-2493
NSN 6610-00-133-7756
NSN 6105-00-085-2178
NSN 5935-00-005-4800
NSN 5990-01-633-9503
NSN 6110-01-458-7125
NSN 6220-01-213-0177
NSN 5915-01-048-5420
NSN 2925-01-027-1293
NSN 6610-01-413-3912
NSN 5935-00-217-8847
NSN 6135-01-332-0431