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 5996-01-088-8715
NSN 6220-01-108-3857
NSN 5996-00-823-8487
NSN 5905-00-352-7147
NSN 5835-01-461-8184
NSN 6110-01-423-1655
NSN 6135-00-932-3136
NSN 4140-00-150-8265
NSN 7035-01-132-7209
NSN 6145-01-386-6075
NSN 6320-00-036-3688
NSN 5855-01-337-0245