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 6130-00-737-0459
NSN 4140-01-428-9426
NSN 6110-01-336-9546
NSN 5996-00-651-1656
NSN 4140-01-131-9394
NSN 6220-01-075-3506
NSN 6320-01-393-7022
NSN 5975-01-476-7472
NSN 5915-01-599-8846
NSN 5920-00-199-9514
NSN 7035-00-200-5162
NSN 6645-00-415-9018