A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6110-00-421-7656
NSN 5925-01-094-8053
NSN 5915-01-123-9521
NSN 5950-00-923-8440
NSN 6650-01-223-5959
NSN 5985-01-232-7314
NSN 5905-01-425-1366
NSN 5920-01-147-6860
NSN 5999-00-449-1950
NSN 6145-01-311-4761
NSN 6105-00-606-8545
NSN 6645-01-139-0156