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 6110-01-515-1797
NSN 5910-00-223-3137
NSN 6620-00-969-3972
NSN 2925-00-902-3881
NSN 5990-01-244-9998
NSN 5950-01-368-5446
NSN 6610-01-185-4939
NSN 5910-01-210-2692
NSN 6685-00-269-6444
NSN 5835-01-241-1090
NSN 6130-01-258-4130
NSN 4140-00-058-9839