Material is steel type 316
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 4140-01-482-8447
NSN 6145-01-537-8106
NSN 5915-01-343-0941
NSN 6105-01-447-9785
NSN 5915-01-320-2528
NSN 5985-01-607-3694
NSN 6105-00-665-8581
NSN 6110-01-612-7361
NSN 5990-00-633-0124
NSN 5975-01-548-3118
NSN 5935-01-415-5915
NSN 5915-00-811-5443