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 6150-01-543-4942
NSN 6105-01-516-1927
NSN 6220-01-029-8605
NSN 5965-01-334-8021
NSN 6610-01-604-7335
NSN 6220-00-500-3198
NSN 5920-01-345-8530
NSN 6110-00-913-6474
NSN 5910-01-564-5842
NSN 5998-01-158-6067
NSN 6645-01-633-1852
NSN 5996-00-553-7348