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 5990-01-030-4062
NSN 5999-01-028-4179
NSN 5920-01-457-4653
NSN 5996-00-864-9450
NSN 5990-01-110-4841
NSN 5930-00-317-7879
NSN 5990-01-164-0220
NSN 5920-01-605-8747
NSN 5925-01-345-9418
NSN 5930-01-267-3974
NSN 5920-00-981-5803
NSN 6620-01-399-3615