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 6645-01-477-2532
NSN 6645-01-019-8662
NSN 5835-01-412-5325
NSN 5905-00-245-8016
NSN 5855-01-408-3154
NSN 5999-01-618-0559
NSN 2925-00-127-7828
NSN 5999-01-227-1383
NSN 5935-01-027-1866
NSN 6150-01-657-2955
NSN 5950-00-823-7799
NSN 2925-00-646-6099