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 6240-01-094-7717
NSN 5960-01-512-0233
NSN 6150-01-068-5406
NSN 6105-01-504-8764
NSN 6105-01-102-8658
NSN 5920-01-050-7474
NSN 5998-01-485-3307
NSN 5960-01-185-2550
NSN 5905-00-793-9106
NSN 5996-01-462-0112
NSN 5985-01-168-8546
NSN 6105-01-016-6420