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 5925-00-280-2273
NSN 6220-01-408-3017
NSN 5895-01-560-5463
NSN 6620-01-317-4233
NSN 5935-01-092-1615
NSN 6105-01-172-0214
NSN 2925-00-513-6644
NSN 4140-01-382-5778
NSN 5960-01-156-1396
NSN 5855-01-010-4921
NSN 5905-01-044-5183
NSN 5999-01-565-8986