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 5960-01-582-6167
NSN 6130-01-363-9613
NSN 6645-00-300-0401
NSN 6320-00-731-6134
NSN 2925-01-027-1293
NSN 5960-01-624-1170
NSN 6130-01-449-4105
NSN 5965-01-187-8574
NSN 5910-00-877-7721
NSN 2925-00-099-4030
NSN 5915-01-050-4947
NSN 5950-01-420-2551