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 5835-01-044-2628
NSN 6150-01-419-5965
NSN 6650-00-197-7563
NSN 5990-01-264-9759
NSN 5935-00-906-8537
NSN 5950-01-431-6884
NSN 6220-01-497-9607
NSN 7035-01-515-7055
NSN 5945-01-183-3768
NSN 5915-00-251-3906
NSN 5895-00-415-2981
NSN 6685-01-189-8225