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 5920-00-390-3437
NSN 5999-01-634-0576
NSN 5965-00-894-0015
NSN 5935-01-364-4314
NSN 6130-00-119-9170
NSN 5910-01-233-5720
NSN 6620-00-819-5046
NSN 6240-01-358-7127
NSN 6220-01-187-7119
NSN 5930-01-494-3808
NSN 6610-00-213-8544
NSN 6150-01-047-5738