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 2925-01-055-7607
NSN 5975-01-511-0463
NSN 6220-01-281-6063
NSN 5855-01-346-7682
NSN 5985-00-887-1451
NSN 5996-01-498-4336
NSN 5935-01-389-8291
NSN 5945-01-617-0404
NSN 5975-00-233-6301
NSN 5910-00-992-5444
NSN 6145-00-294-0830
NSN 6240-01-412-4603