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 6620-01-633-8443
NSN 5905-00-701-0977
NSN 5996-00-968-6524
NSN 5915-01-421-4352
NSN 6320-01-029-4220
NSN 5905-00-292-1113
NSN 6610-01-329-0969
NSN 5895-01-138-8756
NSN 5945-01-107-1773
NSN 5855-01-509-3413
NSN 6685-01-011-8085
NSN 7035-01-280-4692