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 5990-01-212-2037
NSN 6240-00-079-0112
NSN 7035-01-266-3490
NSN 6620-00-500-0041
NSN 5920-01-075-7116
NSN 5925-00-904-1748
NSN 5915-01-012-5604
NSN 6220-01-585-4698
NSN 5905-00-949-4725
NSN 5895-01-576-2331
NSN 5960-01-018-1489
NSN 6650-01-097-5659