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 6685-01-040-7710
NSN 6620-00-959-6614
NSN 5910-01-261-8990
NSN 6135-01-364-2738
NSN 6150-01-113-5095
NSN 5945-00-613-2338
NSN 5998-01-437-5413
NSN 5855-01-455-0254
NSN 4140-01-504-8326
NSN 5960-01-262-5048
NSN 5920-01-155-7685
NSN 5965-01-384-4912