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 5935-01-530-0836
NSN 6620-01-485-9743
NSN 6220-00-782-2058
NSN 6645-00-565-1569
NSN 5990-00-698-3963
NSN 5998-01-318-4873
NSN 5925-00-068-6736
NSN 5996-01-260-1916
NSN 5945-01-139-7093
NSN 5895-01-320-5790
NSN 6150-01-242-8537
NSN 6610-00-079-1508