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 4140-00-078-9357
NSN 6610-01-406-4985
NSN 6130-01-478-4217
NSN 5975-01-290-4719
NSN 5920-01-373-6045
NSN 5930-01-071-5465
NSN 7035-00-111-4389
NSN 6320-00-306-0124
NSN 5945-01-199-5603
NSN 5990-01-461-8969
NSN 4140-00-595-0376
NSN 6620-00-833-6786