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 6240-01-425-1659
NSN 6150-01-413-0853
NSN 6685-00-202-5233
NSN 5925-01-302-1999
NSN 5920-01-146-2112
NSN 5930-01-228-3510
NSN 6135-00-347-0595
NSN 5965-00-612-0072
NSN 6610-01-441-8364
NSN 5985-01-373-4466
NSN 5960-01-425-1454
NSN 5915-00-730-3925