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 6105-00-493-7680
NSN 5945-00-259-7758
NSN 6645-01-211-6502
NSN 4140-01-318-1523
NSN 6320-00-242-3300
NSN 6685-01-064-7990
NSN 6220-01-106-0828
NSN 5965-01-386-2988
NSN 6110-00-216-6911
NSN 6620-01-435-7083
NSN 6620-00-072-8602
NSN 5915-01-349-0758