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 5835-00-177-2970
NSN 6610-01-252-4717
NSN 5930-00-819-5159
NSN 5835-00-677-7731
NSN 6650-00-717-8913
NSN 5855-01-573-0761
NSN 6685-00-089-2543
NSN 5998-01-512-9486
NSN 6650-01-246-4262
NSN 5990-01-491-1397
NSN 6620-01-633-8443
NSN 5998-01-433-5621