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 5905-01-612-4237
NSN 6620-01-041-8567
NSN 6685-01-093-7841
NSN 7035-01-412-8322
NSN 6130-00-339-1069
NSN 6610-00-163-6319
NSN 5996-01-627-9878
NSN 5920-01-206-0191
NSN 5935-01-260-4104
NSN 6650-00-287-5868
NSN 6110-00-147-9063
NSN 5895-01-634-0630