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 5920-01-547-0716
NSN 6685-01-398-5926
NSN 6620-01-346-9340
NSN 7035-01-121-0901
NSN 5999-01-180-6823
NSN 5925-01-660-3505
NSN 6645-01-515-5756
NSN 6135-01-243-5797
NSN 6620-01-014-7192
NSN 5835-00-438-4489
NSN 5960-00-222-6174
NSN 6135-01-273-1253