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 6110-00-136-9590
NSN 6240-01-122-7391
NSN 4140-01-055-6355
NSN 5960-01-641-5493
NSN 5985-00-758-6801
NSN 6220-01-062-2077
NSN 5975-00-142-2450
NSN 6620-00-543-6562
NSN 6130-01-617-6740
NSN 6240-01-008-5267
NSN 5895-00-835-4806
NSN 6110-01-048-7725