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 6150-00-578-7816
NSN 6105-01-546-9899
NSN 6320-00-089-9426
NSN 6620-01-296-9803
NSN 5935-01-023-1421
NSN 5910-00-204-0111
NSN 5965-01-555-8007
NSN 5950-01-366-1961
NSN 6320-01-578-6006
NSN 6240-00-879-5830
NSN 5895-01-072-3452
NSN 5985-01-657-9019