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 5905-01-485-3569
NSN 5975-01-347-8956
NSN 5915-01-481-3025
NSN 5835-01-399-5820
NSN 6150-01-188-2230
NSN 6685-01-125-0026
NSN 5855-01-450-8018
NSN 5965-00-127-3847
NSN 5910-00-889-8491
NSN 6685-00-794-9187
NSN 5855-01-136-9532
NSN 5935-00-892-3059