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 2925-00-078-0525
NSN 5895-01-211-0211
NSN 6620-00-663-8962
NSN 6320-01-515-7913
NSN 7035-01-381-6185
NSN 4140-00-343-2121
NSN 5996-00-213-7121
NSN 5910-00-051-5556
NSN 5915-01-421-1818
NSN 6105-00-575-9720
NSN 6650-01-154-1870
NSN 6240-01-266-0930