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 5985-01-100-1206
NSN 5960-00-960-6805
NSN 6645-01-449-5457
NSN 6645-01-007-5295
NSN 6645-01-449-5457
NSN 6685-00-881-0795
NSN 5915-01-171-4141
NSN 5910-01-017-3407
NSN 5910-01-017-1035
NSN 6645-01-445-2841
NSN 6240-00-762-7456
NSN 5950-00-851-6105