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 5999-01-112-1015
NSN 7035-01-160-4423
NSN 6220-01-488-9416
NSN 5999-00-340-3656
NSN 5975-01-363-0741
NSN 6105-01-271-2834
NSN 6130-00-518-1884
NSN 5990-01-218-5160
NSN 5855-01-634-0259
NSN 6645-00-883-8086
NSN 6320-01-350-5570
NSN 4140-00-005-2093