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 7035-00-574-4223
NSN 4140-01-197-7658
NSN 7035-00-553-6951
NSN 5895-00-203-2379
NSN 6620-00-992-5876
NSN 6645-01-521-3180
NSN 6130-01-308-3540
NSN 5999-00-925-9535
NSN 5905-01-420-7204
NSN 6320-01-097-5347
NSN 5925-01-028-4085
NSN 5960-01-286-3766