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 5925-01-041-2876
NSN 5945-01-106-1703
NSN 5990-00-073-2676
NSN 6685-01-515-0593
NSN 5996-01-147-3297
NSN 5920-01-025-1618
NSN 5915-01-371-6966
NSN 5835-00-034-4976
NSN 6240-01-013-6052
NSN 5895-01-342-8945
NSN 7035-01-123-8723
NSN 6105-01-221-9481