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 5925-01-371-8766
NSN 5945-00-961-3137
NSN 6620-01-600-7483
NSN 6645-01-432-1068
NSN 6320-00-731-6134
NSN 5835-01-252-5879
NSN 6145-01-544-2990
NSN 6320-00-371-8335
NSN 5935-01-257-9779
NSN 6130-00-193-2421
NSN 6620-01-571-7727
NSN 4140-00-347-6807