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 6650-01-050-8680
NSN 5855-01-229-3864
NSN 6105-01-028-9352
NSN 6620-00-714-6966
NSN 4140-00-400-4872
NSN 5920-00-035-4846
NSN 6130-01-455-1747
NSN 6220-00-622-3572
NSN 5930-00-212-7041
NSN 5996-01-600-8077
NSN 6240-01-374-7116
NSN 6685-01-430-5479