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 5855-01-577-8718
NSN 4140-01-202-7853
NSN 6105-00-643-4975
NSN 5920-01-103-1401
NSN 5945-00-845-6029
NSN 6320-00-500-4172
NSN 5965-00-196-7320
NSN 6220-01-358-9974
NSN 5835-01-618-1225
NSN 5915-01-137-4975
NSN 5965-00-167-7659
NSN 6650-00-239-9226