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 5999-01-610-8976
NSN 6320-01-449-1014
NSN 7035-01-425-5962
NSN 6150-01-593-4338
NSN 6610-01-495-0596
NSN 6240-00-935-7058
NSN 5835-01-544-5183
NSN 5925-01-551-4116
NSN 5999-01-221-5102
NSN 6145-00-435-9296
NSN 6150-01-062-6546
NSN 5930-00-969-6837