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 6150-01-493-6663
NSN 5915-00-538-5251
NSN 6135-01-581-8163
NSN 5935-00-595-9262
NSN 5935-01-096-8914
NSN 6130-01-240-3630
NSN 5835-00-891-2784
NSN 6130-01-639-8149
NSN 5985-01-476-7652
NSN 5965-01-231-9125
NSN 6685-00-591-1952
NSN 6240-01-342-5056