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 6110-01-472-1963
NSN 6110-01-560-0387
NSN 6610-01-459-8192
NSN 2925-01-554-5246
NSN 5935-00-928-8221
NSN 6105-00-828-3386
NSN 5925-01-147-8848
NSN 5998-00-922-0386
NSN 5930-00-594-1090
NSN 5945-00-358-7652
NSN 6145-00-110-9410
NSN 7035-01-013-9889