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 6650-01-411-6292
NSN 4140-01-307-5152
NSN 5999-01-475-6664
NSN 5835-01-565-3411
NSN 6130-01-504-8285
NSN 5975-00-734-6243
NSN 7035-00-238-3662
NSN 6320-01-567-9792
NSN 6220-01-178-0171
NSN 5945-01-651-5308
NSN 7035-01-181-2705
NSN 6240-01-038-3761