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 5895-01-226-1466
NSN 5960-00-633-6923
NSN 5935-01-430-5562
NSN 6685-01-289-0095
NSN 6130-01-514-2726
NSN 6130-01-633-8382
NSN 6130-01-348-4807
NSN 7035-00-052-2188
NSN 5835-01-125-0303
NSN 5960-01-599-9821
NSN 6650-01-163-3758
NSN 5998-01-052-3217