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 6110-01-475-2599
NSN 5985-00-216-8216
NSN 5895-01-116-4632
NSN 6220-01-526-4740
NSN 5950-01-082-9476
NSN 5855-01-522-8238
NSN 6620-01-160-8517
NSN 5998-01-246-4483
NSN 5945-01-508-5735
NSN 5945-01-249-2725
NSN 5905-01-067-2939
NSN 5999-00-990-7508