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 5915-01-481-0735
NSN 5998-00-956-6518
NSN 5895-01-249-5020
NSN 5990-01-310-5630
NSN 6240-00-594-7138
NSN 5975-01-132-3603
NSN 6130-01-130-9415
NSN 4140-00-225-8586
NSN 5835-01-597-4820
NSN 6650-01-170-5440
NSN 5990-01-443-2931
NSN 5950-00-233-6707