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 5990-01-369-2764
NSN 5915-01-095-4853
NSN 6220-01-627-2018
NSN 5925-01-272-9577
NSN 6220-01-578-4401
NSN 5965-00-677-1461
NSN 2925-01-364-7926
NSN 6620-01-349-4469
NSN 5998-00-912-1860
NSN 6105-01-549-9872
NSN 5835-01-616-6131
NSN 6105-01-513-0310