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 4140-01-285-6457
NSN 5855-01-116-8905
NSN 5895-01-130-8092
NSN 6320-01-054-3046
NSN 5998-01-631-1751
NSN 5855-00-481-0019
NSN 5945-00-113-5350
NSN 6150-01-507-5372
NSN 5910-01-049-8107
NSN 6320-01-441-2438
NSN 6320-00-466-0371
NSN 2925-00-964-7128