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 6650-01-210-9004
NSN 6320-00-405-2348
NSN 6620-01-036-2983
NSN 5930-00-769-3015
NSN 6145-00-578-7522
NSN 6110-00-813-8632
NSN 5855-01-486-7538
NSN 5998-01-418-9204
NSN 6135-00-175-1279
NSN 5855-01-208-1471
NSN 6150-00-257-5027
NSN 5965-00-267-4173