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 5905-01-451-7391
NSN 5965-01-562-5830
NSN 6240-01-560-0910
NSN 5990-01-212-2037
NSN 6105-00-273-1106
NSN 5998-00-314-2215
NSN 5905-00-880-1794
NSN 6150-00-052-4221
NSN 5910-00-850-8510
NSN 6685-00-864-1271
NSN 5915-01-326-1470
NSN 5975-01-535-0754