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 4140-00-648-3303
NSN 5996-00-242-2523
NSN 5855-01-020-7982
NSN 5895-01-579-8829
NSN 5990-01-029-0868
NSN 6105-01-132-3604
NSN 5910-00-025-0451
NSN 6150-01-437-1397
NSN 6145-00-705-6686
NSN 6105-01-350-2517
NSN 4140-00-413-0877
NSN 5985-00-080-6576