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 6135-00-567-1322
NSN 5905-01-284-2822
NSN 6320-00-456-0836
NSN 5998-01-129-0510
NSN 7035-00-063-5245
NSN 5999-01-464-3999
NSN 5910-01-253-8399
NSN 6135-01-538-0997
NSN 6150-00-286-0827
NSN 6135-01-106-5542
NSN 5999-01-380-1593
NSN 5910-00-187-0032