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 5996-01-158-2531
NSN 5915-01-268-0930
NSN 5999-00-115-3600
NSN 5935-01-277-8610
NSN 5935-01-167-9424
NSN 5960-01-395-9834
NSN 5835-01-548-7454
NSN 6145-00-952-1815
NSN 4140-01-628-9921
NSN 5920-00-497-1916
NSN 5960-00-193-6867
NSN 6130-01-246-3310