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 6610-00-326-9065
NSN 5915-01-193-6298
NSN 5905-00-170-8113
NSN 6135-00-080-9176
NSN 5985-01-282-8921
NSN 5910-01-238-8557
NSN 4140-01-472-3727
NSN 5990-01-411-7706
NSN 5835-01-471-5848
NSN 5920-01-615-9687
NSN 5835-01-616-6131
NSN 6105-00-125-9394