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 5915-01-391-3143
NSN 6105-01-624-8070
NSN 5895-01-141-6031
NSN 6620-01-085-8688
NSN 5950-01-062-8470
NSN 7035-01-460-2261
NSN 7035-00-631-3782
NSN 5960-00-249-2547
NSN 6320-00-456-2092
NSN 6150-01-147-4508
NSN 6685-01-493-7592
NSN 5998-01-467-1718