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 5945-01-300-5937
NSN 6650-01-235-0981
NSN 6320-01-054-3046
NSN 6685-01-387-9084
NSN 6105-01-333-3983
NSN 5996-01-437-8824
NSN 6135-00-553-7995
NSN 2925-00-102-7701
NSN 5950-01-398-3531
NSN 5930-01-440-9443
NSN 5950-01-554-2764
NSN 6620-01-601-4314