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 6685-00-218-1229
NSN 5945-01-259-9782
NSN 5910-00-762-6035
NSN 5915-01-519-6675
NSN 4140-00-230-4252
NSN 6320-01-450-7083
NSN 6110-01-350-2533
NSN 5965-01-514-7231
NSN 6240-01-062-0878
NSN 7035-01-486-4118
NSN 5925-01-543-8310
NSN 5935-01-362-3437