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 5960-01-614-8005
NSN 6220-01-569-7715
NSN 5950-01-105-1979
NSN 5945-01-492-9907
NSN 4140-00-820-1173
NSN 5835-00-725-2087
NSN 5965-01-101-9094
NSN 7035-00-620-6835
NSN 6320-01-157-9076
NSN 5985-01-146-4877
NSN 6130-01-231-4682
NSN 5855-00-925-0114