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 4140-00-518-2744
NSN 6685-01-512-7330
NSN 6620-01-391-7331
NSN 5945-00-403-3905
NSN 5935-00-468-2096
NSN 5835-01-101-8382
NSN 5915-01-148-6885
NSN 6650-01-623-5931
NSN 6645-01-099-0249
NSN 5998-00-293-6286
NSN 5925-01-154-6796
NSN 6150-01-584-8856