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 5915-00-018-1282
NSN 5935-00-230-0901
NSN 6610-01-113-2726
NSN 6650-01-494-6338
NSN 6620-00-781-9617
NSN 5960-00-497-9862
NSN 5925-00-353-0307
NSN 5935-00-290-5304
NSN 6105-00-473-2314
NSN 6240-01-249-9840
NSN 5985-01-652-5866
NSN 5996-00-897-5040