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 5855-01-605-2438
NSN 5935-00-422-0833
NSN 6135-01-176-2206
NSN 6150-01-544-0355
NSN 6650-00-963-1692
NSN 7035-01-061-1252
NSN 2925-01-364-7926
NSN 5910-00-469-4881
NSN 6220-00-883-5842
NSN 6685-01-055-4806
NSN 5960-01-390-7236
NSN 5855-01-023-3727