Material specification qq-a-268
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 5990-01-633-9503
NSN 5895-01-477-8192
NSN 5835-01-306-5511
NSN 5945-01-450-4840
NSN 5835-01-436-6549
NSN 5930-00-740-7052
NSN 5960-00-839-1529
NSN 6110-01-397-6161
NSN 5998-00-703-0721
NSN 5925-00-990-8818
NSN 6320-00-925-0558
NSN 6110-01-228-8384