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 5895-01-306-5568
NSN 6685-01-055-6057
NSN 5985-00-724-7940
NSN 5935-00-797-8728
NSN 6650-01-331-5243
NSN 5950-01-643-5511
NSN 5930-01-062-2632
NSN 4140-01-590-1632
NSN 6105-01-543-9596
NSN 5920-01-035-7713
NSN 5895-01-272-9740
NSN 5925-01-297-5906