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 5998-00-430-0366
NSN 5998-01-593-3853
NSN 6220-01-046-4729
NSN 5950-01-172-4307
NSN 5990-00-343-4465
NSN 6240-01-015-7791
NSN 5999-00-759-5311
NSN 5999-00-678-8634
NSN 6645-01-098-1179
NSN 5985-00-703-0999
NSN 5855-01-068-3683
NSN 6645-00-881-9978