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 7035-01-007-7181
NSN 5998-01-465-1593
NSN 6150-01-041-6567
NSN 6130-01-531-8355
NSN 6130-01-320-0323
NSN 5975-01-351-2084
NSN 5960-00-605-9192
NSN 5996-00-992-9936
NSN 6610-01-655-1559
NSN 6150-00-419-0505
NSN 5855-00-688-9954
NSN 6240-01-506-3911