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 6320-01-274-8886
NSN 6105-01-596-3115
NSN 5915-00-890-0929
NSN 6145-00-263-6989
NSN 5998-01-460-5779
NSN 5855-01-110-9564
NSN 5999-01-627-7271
NSN 5910-01-511-5582
NSN 6135-01-508-6083
NSN 2925-01-103-4499
NSN 5950-00-269-4805
NSN 5999-01-641-2255