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
NSN 5985-01-326-3608
NSN 5910-01-536-2353
NSN 6610-01-633-8931
NSN 5996-01-308-0865
NSN 6320-01-388-1067
NSN 5965-01-440-3421
NSN 5935-01-448-2325
NSN 5895-00-972-7322
NSN 6105-01-387-1120
NSN 5999-00-139-2493
NSN 5960-01-203-9814