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 5895-01-523-9979
NSN 6685-00-248-6990
NSN 6150-00-837-2454
NSN 5965-01-481-2422
NSN 6110-01-362-7498
NSN 6240-01-447-2838
NSN 5835-01-330-6791
NSN 6220-00-515-6998
NSN 6105-00-753-0136
NSN 6220-01-445-0050
NSN 5998-01-264-8846
NSN 5990-01-357-6175