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 5835-01-071-1003
NSN 6320-00-284-1524
NSN 6220-01-225-7830
NSN 6130-00-058-9581
NSN 6650-01-499-4381
NSN 6105-01-082-8960
NSN 5920-01-608-1436
NSN 6150-01-572-6683
NSN 5920-01-142-5750
NSN 5855-01-085-5354
NSN 6220-01-170-9355
NSN 5935-01-435-2799