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 5935-01-223-1092
NSN 5999-01-367-9855
NSN 5905-01-089-7897
NSN 6685-01-270-8346
NSN 7035-00-252-7467
NSN 5998-01-487-3769
NSN 6220-01-337-5333
NSN 5915-01-487-3883
NSN 5835-01-434-0790
NSN 5965-01-374-9075
NSN 5915-00-059-3584
NSN 7035-01-048-7122