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 5950-01-563-7259
NSN 4140-01-097-6691
NSN 6105-01-474-8399
NSN 6135-00-593-6831
NSN 6105-00-003-3316
NSN 7035-01-146-1578
NSN 6150-00-130-8285
NSN 5998-01-534-4240
NSN 2925-01-444-2061
NSN 5910-01-147-5351
NSN 7035-01-300-1599
NSN 6105-01-508-7921