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 5998-00-170-6190
NSN 5985-01-336-0294
NSN 6110-00-405-2201
NSN 6110-00-130-5342
NSN 5925-00-386-8532
NSN 5925-01-328-2053
NSN 6610-01-158-6540
NSN 5855-01-308-0955
NSN 6220-00-731-4923
NSN 5935-01-334-6146
NSN 6110-00-174-9353
NSN 5905-01-465-0874