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 5920-01-107-7541
NSN 5945-00-450-1649
NSN 6110-01-424-5590
NSN 5945-01-456-4449
NSN 5998-01-105-9802
NSN 6145-01-656-8445
NSN 4140-01-413-3924
NSN 4140-00-628-3546
NSN 5855-00-560-0110
NSN 5835-01-050-9509
NSN 2925-00-402-5582
NSN 6620-01-471-8128