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 6145-00-427-7201
NSN 6105-01-166-6353
NSN 6620-01-487-8735
NSN 5950-00-284-7294
NSN 5965-01-260-2547
NSN 5998-00-460-1686
NSN 5985-00-961-1871
NSN 5935-00-101-7818
NSN 6620-00-832-2556
NSN 4140-00-561-7991
NSN 5925-00-503-7516
NSN 6220-00-936-8601