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 4140-01-630-5755
NSN 6105-00-759-1894
NSN 6320-00-521-9350
NSN 6620-00-583-2687
NSN 5975-01-176-6403
NSN 5930-01-361-8648
NSN 5855-01-352-7033
NSN 5998-00-292-9515
NSN 5835-01-386-4027
NSN 5910-01-357-7108
NSN 5905-01-651-3010
NSN 5930-00-133-4033