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 5985-00-050-0336
NSN 5920-01-450-7364
NSN 6645-00-526-9476
NSN 6220-01-359-4857
NSN 6130-00-779-5721
NSN 5910-01-046-6519
NSN 6685-01-020-7235
NSN 5920-01-442-4937
NSN 5930-01-039-3577
NSN 4140-00-325-5395
NSN 6645-01-368-1508
NSN 6240-01-318-1522