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 5910-00-104-8320
NSN 5965-00-898-1356
NSN 6320-01-343-5846
NSN 5945-01-123-1558
NSN 5945-00-919-8494
NSN 5950-00-811-8699
NSN 5935-01-125-5012
NSN 6240-00-677-0305
NSN 5975-01-415-0918
NSN 6135-01-495-0933
NSN 5999-01-380-6713
NSN 6105-01-072-1526