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 6135-01-633-8502
NSN 5920-01-286-1215
NSN 6150-01-358-1100
NSN 4140-01-046-8196
NSN 5835-01-091-2553
NSN 6220-01-181-5854
NSN 7035-00-108-4421
NSN 5925-01-504-0181
NSN 6145-01-035-0220
NSN 5950-01-391-5647
NSN 2925-01-424-0235
NSN 6110-00-318-6053