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 5935-01-549-3416
NSN 5835-01-406-4066
NSN 5950-01-540-9939
NSN 5895-00-810-8063
NSN 4140-00-270-4457
NSN 4140-01-566-6614
NSN 6320-01-119-3935
NSN 5975-01-579-1850
NSN 6105-01-341-9122
NSN 5965-01-323-0501
NSN 6110-00-112-0253
NSN 6220-01-341-8240