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 5990-01-361-6424
NSN 5905-01-094-6361
NSN 5925-00-468-2757
NSN 5960-00-104-5955
NSN 5935-00-951-9881
NSN 5935-01-479-4201
NSN 5950-00-831-4115
NSN 5855-01-648-7687
NSN 6130-00-153-3136
NSN 2925-01-622-8568
NSN 5915-01-588-2842
NSN 5835-01-495-0595