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 5915-00-342-8146
NSN 5990-01-389-1196
NSN 5835-01-407-3255
NSN 5905-00-824-3950
NSN 5915-01-197-1857
NSN 5990-01-232-9008
NSN 6220-00-081-6429
NSN 6105-01-528-6793
NSN 5996-01-208-6053
NSN 5950-00-467-1592
NSN 5945-01-165-9713
NSN 6240-01-445-4232