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 5930-01-484-1209
NSN 5990-01-020-6841
NSN 5996-00-252-8501
NSN 4140-01-268-1351
NSN 5990-01-492-9887
NSN 6130-01-160-0227
NSN 5998-00-168-8671
NSN 5985-00-116-8450
NSN 5915-00-036-9529
NSN 6130-01-652-2404
NSN 5905-01-516-2974
NSN 7035-01-449-9138