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 6650-00-816-6525
NSN 6240-00-698-5822
NSN 6650-01-062-8105
NSN 5950-00-244-2821
NSN 5915-01-116-1897
NSN 5975-01-481-4338
NSN 5950-00-555-2881
NSN 5996-01-628-8624
NSN 5945-00-189-8783
NSN 5915-01-345-0369
NSN 5855-01-382-8725
NSN 6130-00-871-7579