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 5998-00-141-9872
NSN 4140-00-200-9082
NSN 5998-00-677-4208
NSN 5905-01-542-9870
NSN 2925-01-481-7170
NSN 5990-01-595-9441
NSN 5996-01-521-2211
NSN 6135-01-459-6424
NSN 5945-01-412-1393
NSN 5910-01-336-0886
NSN 6685-00-146-2308
NSN 6150-01-388-7266