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 5975-01-543-2999
NSN 7035-01-091-1929
NSN 6610-01-508-3125
NSN 5910-01-057-0383
NSN 6610-01-468-6880
NSN 5935-00-830-2713
NSN 6610-00-961-7263
NSN 6130-01-564-4867
NSN 5935-01-617-2199
NSN 6145-01-466-3942
NSN 6610-01-542-8825
NSN 5925-01-605-3536