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 6685-01-632-3152
NSN 5910-01-226-2425
NSN 6620-01-343-6671
NSN 4140-01-107-0576
NSN 5895-00-734-1987
NSN 5835-00-011-6660
NSN 5975-01-046-6327
NSN 5935-01-495-1980
NSN 5960-01-105-3845
NSN 5999-01-487-5668
NSN 6135-00-437-5182
NSN 5910-00-515-3586