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 5999-00-681-0587
NSN 5915-00-814-0602
NSN 5985-01-425-7077
NSN 5945-01-079-7018
NSN 5985-01-642-3533
NSN 6320-01-407-2285
NSN 6685-00-684-7891
NSN 5835-00-880-6477
NSN 5855-01-524-9353
NSN 5935-01-523-2685
NSN 6135-01-132-6310
NSN 5945-01-243-0893