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 7035-01-575-6768
NSN 5960-01-395-6939
NSN 4140-01-605-4196
NSN 5895-00-079-5044
NSN 6130-01-191-5856
NSN 5920-00-201-4914
NSN 5920-01-607-0771
NSN 5895-00-376-5074
NSN 6135-00-134-6648
NSN 6135-01-230-4399
NSN 5915-00-097-3974
NSN 5975-01-453-5543