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 5999-00-290-5898
NSN 5998-00-548-4543
NSN 6110-01-396-4254
NSN 5910-01-192-1848
NSN 5920-01-158-4400
NSN 5895-01-595-4977
NSN 5965-01-315-5764
NSN 5905-01-136-1276
NSN 5915-01-136-4035
NSN 2925-01-055-7607
NSN 5855-00-149-0766
NSN 7035-01-459-5293