Divers mask usn mark 1 model o
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 6150-01-567-8158
NSN 7035-01-155-9025
NSN 6685-01-578-7498
NSN 6220-00-234-2416
NSN 5835-00-707-6266
NSN 5835-01-328-6626
NSN 5935-01-567-9981
NSN 5990-00-505-1546
NSN 5895-01-455-2941
NSN 5915-01-548-9472
NSN 5945-01-482-4727
NSN 5910-00-542-2334