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 5950-01-008-0709
NSN 6145-00-466-4068
NSN 6620-01-176-1466
NSN 5905-01-305-0512
NSN 6320-01-050-1290
NSN 5835-00-378-1429
NSN 5950-01-431-3710
NSN 5915-01-575-9746
NSN 5985-01-281-7333
NSN 4140-01-649-9621
NSN 6105-00-686-1732
NSN 2925-00-831-7024