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 5950-00-121-7442
NSN 6145-00-551-5288
NSN 6145-01-090-5648
NSN 5985-01-229-4751
NSN 5905-01-642-2495
NSN 5910-00-902-1868
NSN 6620-01-365-1499
NSN 5905-00-126-6921
NSN 6105-01-240-5015
NSN 6130-00-880-3980
NSN 5835-01-580-0446
NSN 6685-01-502-7538