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 5920-00-936-1661
NSN 6130-01-047-9269
NSN 6150-01-141-6014
NSN 6610-00-308-9034
NSN 5895-00-227-9936
NSN 5960-00-185-9974
NSN 5915-00-235-7388
NSN 6650-00-710-8130
NSN 5985-01-578-6310
NSN 5998-01-468-9607
NSN 5950-01-517-1025
NSN 6650-01-280-1778