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 5945-00-317-4812
NSN 5915-01-435-5275
NSN 5960-01-442-9304
NSN 6135-00-932-3136
NSN 5835-00-647-2104
NSN 6620-00-251-0569
NSN 4140-00-960-8222
NSN 6685-01-158-7039
NSN 6130-01-496-3693
NSN 2925-01-604-8984
NSN 6105-01-334-3266
NSN 5996-01-367-2081