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 6685-01-105-8374
NSN 6650-00-008-9646
NSN 6130-01-056-5251
NSN 5915-01-133-7658
NSN 6135-01-062-9356
NSN 5920-01-338-1410
NSN 6150-01-534-6665
NSN 6610-01-381-0652
NSN 5985-01-070-8102
NSN 5905-00-233-7585
NSN 6220-01-060-3336
NSN 5945-01-260-2539