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 6650-01-036-4344
NSN 4140-00-167-4712
NSN 5910-00-942-4477
NSN 6320-00-937-5625
NSN 6240-01-378-9060
NSN 6130-00-140-0437
NSN 5920-01-231-3615
NSN 6650-00-717-8913
NSN 5999-01-528-8699
NSN 5975-01-492-5398
NSN 6320-00-483-0451
NSN 6130-00-875-0835