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 6620-01-106-3553
NSN 6320-01-521-1764
NSN 5835-01-205-3089
NSN 5996-01-494-4122
NSN 5935-00-107-7905
NSN 5855-00-361-0167
NSN 5996-01-350-9771
NSN 6130-01-153-0937
NSN 5835-01-106-1456
NSN 5895-01-469-6120
NSN 5990-00-464-6385
NSN 5925-01-141-6688