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 6150-01-634-0575
NSN 4140-01-459-7411
NSN 5920-01-219-7973
NSN 6105-01-082-2298
NSN 5930-01-166-1507
NSN 5965-00-082-8987
NSN 5999-01-512-0708
NSN 5945-00-699-1033
NSN 6220-01-300-9448
NSN 2925-01-442-7812
NSN 5835-00-656-7317
NSN 6135-00-557-8874