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 5960-01-543-0235
NSN 5905-01-517-5081
NSN 4140-01-034-9022
NSN 5925-01-351-2312
NSN 5975-00-964-9064
NSN 4140-01-148-1900
NSN 6240-01-387-4948
NSN 5915-01-554-8040
NSN 6650-01-529-6721
NSN 4140-00-361-4691
NSN 5975-00-134-5294
NSN 5998-01-357-6819