A ring-shaped item whose outer surface is so shaped as to form a seat for the coupling nut and the fitting between which it is assembled. It is designed to be slipped over tubing or hose so that tightening of the coupling nut to the fitting compresses the sleeve against the circumference of the tubing or hose thereby effecting a tight seal between the tubing, or hose fitting and coupling nut.
NSN 5999-01-101-1479
NSN 6650-00-104-3430
NSN 5835-00-106-2120
NSN 6240-00-197-6819
NSN 6220-00-815-0191
NSN 6645-00-130-6419
NSN 6650-01-210-9004
NSN 6110-00-469-6751
NSN 5960-01-168-5010
NSN 5945-01-454-7682
NSN 4140-00-952-2287
NSN 5935-01-567-0239