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 6145-01-571-7928
NSN 5905-01-400-3042
NSN 6610-01-154-7949
NSN 6240-00-865-3257
NSN 5990-00-244-8684
NSN 5915-01-446-1016
NSN 5935-01-634-0668
NSN 6240-01-596-3183
NSN 5930-00-133-9629
NSN 6150-01-449-3165
NSN 5945-00-852-2812
NSN 5960-01-114-0197