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 6610-00-159-1119
NSN 5985-01-185-7706
NSN 6620-00-075-6667
NSN 5920-01-067-2289
NSN 5835-01-652-0168
NSN 6320-01-021-6633
NSN 6105-01-502-7434
NSN 4140-00-269-5795
NSN 6620-01-129-8943
NSN 6110-00-375-6279
NSN 5999-01-214-0946
NSN 6145-01-444-3548