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 6610-01-117-7130
NSN 2925-00-087-2465
NSN 5920-00-081-9156
NSN 6320-01-352-5653
NSN 5960-01-411-5899
NSN 5965-01-271-9990
NSN 5895-01-416-7518
NSN 5950-01-353-0235
NSN 6105-01-359-2962
NSN 6150-00-587-7196
NSN 6105-00-132-7895
NSN 6620-01-431-0706