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 6220-01-106-3215
NSN 5999-01-480-3705
NSN 5935-01-659-7322
NSN 5835-01-227-2318
NSN 7035-01-227-2546
NSN 7035-00-541-8516
NSN 5990-00-359-9839
NSN 6220-00-753-8593
NSN 5855-00-149-0766
NSN 6620-00-804-8272
NSN 6105-01-602-8187
NSN 6135-01-396-0704