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 5945-00-973-3137
NSN 5985-00-721-4303
NSN 6105-00-679-7580
NSN 6150-01-141-4998
NSN 5835-01-099-1514
NSN 5920-01-469-8991
NSN 5996-00-514-7678
NSN 5975-01-245-8641
NSN 6135-01-633-8502
NSN 5910-01-425-1773
NSN 6105-00-489-9140
NSN 5960-01-438-0245