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 6650-01-255-7996
NSN 6320-01-547-2743
NSN 5835-01-447-2544
NSN 2925-01-482-8202
NSN 5950-00-471-6072
NSN 5999-01-429-0126
NSN 6135-01-132-6310
NSN 5935-00-364-7784
NSN 6220-01-182-1083
NSN 5910-00-597-6510
NSN 6105-01-484-0233
NSN 5950-00-246-5277