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 4140-00-193-8879
NSN 6320-00-593-0379
NSN 5855-01-432-2487
NSN 5975-00-950-0588
NSN 5905-00-442-9587
NSN 5975-01-534-6061
NSN 5915-01-503-0155
NSN 5960-01-528-1147
NSN 5910-00-233-5790
NSN 6620-01-494-9858
NSN 7035-01-289-0684
NSN 2925-01-318-8853