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 6105-00-350-6923
NSN 5915-00-665-2854
NSN 5895-01-520-3121
NSN 5998-01-499-0975
NSN 2925-00-574-8796
NSN 6130-01-107-5952
NSN 5855-01-030-8601
NSN 5925-01-272-0894
NSN 5950-01-305-1323
NSN 5835-00-358-4235
NSN 5930-00-141-3846
NSN 5999-01-463-9398