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 5895-00-248-8624
NSN 6110-00-500-4914
NSN 6145-01-238-3890
NSN 6650-00-518-5194
NSN 5910-01-649-8075
NSN 5930-00-270-4442
NSN 5985-01-457-5939
NSN 2925-01-459-8093
NSN 6135-01-351-1131
NSN 5935-01-016-7064
NSN 5915-00-233-6346
NSN 6620-01-208-0235