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 6150-00-774-9369
NSN 5915-01-271-3933
NSN 5835-00-233-6327
NSN 5935-01-211-3837
NSN 4140-01-448-9725
NSN 6240-00-488-0278
NSN 5895-00-292-2872
NSN 5990-00-113-6137
NSN 5855-01-525-7608
NSN 6220-00-594-0025
NSN 5920-01-131-0668
NSN 5855-01-130-1501