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 5915-01-164-4367
NSN 6145-00-932-1950
NSN 5915-01-556-4282
NSN 6240-00-806-4554
NSN 5920-00-152-4003
NSN 6320-01-289-0946
NSN 6320-01-166-3602
NSN 6320-01-364-1840
NSN 5925-01-390-8822
NSN 4140-00-813-1420
NSN 5998-01-225-2917
NSN 6105-01-381-1088