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 5998-01-475-9768
NSN 5990-01-338-2103
NSN 6320-01-611-4918
NSN 5905-00-560-5709
NSN 5925-01-436-8152
NSN 5985-01-393-0766
NSN 5925-00-236-0758
NSN 5998-01-435-4443
NSN 6240-01-417-2976
NSN 5965-01-421-1244
NSN 6145-01-114-3879
NSN 6650-00-197-7563