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 6105-01-400-3431
NSN 5915-01-097-4296
NSN 5999-01-035-8575
NSN 6610-01-321-1835
NSN 6620-01-518-9261
NSN 5945-00-753-9730
NSN 5990-00-925-6614
NSN 6650-01-063-6604
NSN 4140-00-459-9045
NSN 5985-01-093-4699
NSN 6130-01-112-1453
NSN 5935-01-123-8686