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 6150-00-770-6940
NSN 6620-01-210-1968
NSN 5985-01-356-6331
NSN 6110-01-224-1102
NSN 6105-01-435-2575
NSN 5915-01-590-1575
NSN 6220-00-520-0333
NSN 5855-00-320-4116
NSN 5975-01-654-5097
NSN 6130-01-129-9243
NSN 6610-00-401-1631
NSN 6110-01-262-6618