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 5935-01-612-3765
NSN 5985-00-758-6801
NSN 5996-01-570-4583
NSN 5990-01-425-2175
NSN 6130-01-289-0824
NSN 2925-01-532-2477
NSN 5960-00-004-6636
NSN 5975-01-003-9803
NSN 2925-01-122-7527
NSN 5915-01-011-4750
NSN 5935-01-148-2600
NSN 5975-00-279-3972