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 6145-00-681-1585
NSN 5855-00-058-1293
NSN 6150-01-243-0855
NSN 4140-01-043-5089
NSN 6620-00-783-9560
NSN 5910-00-605-5733
NSN 5998-00-878-4961
NSN 5975-01-589-2440
NSN 5950-01-167-8920
NSN 5935-01-276-8927
NSN 6620-01-485-0556
NSN 5905-01-384-2656