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 6240-01-084-8098
NSN 6240-00-263-0549
NSN 7035-01-659-7528
NSN 5895-01-535-4405
NSN 5999-01-348-7446
NSN 5925-01-480-3125
NSN 5935-01-468-9864
NSN 5835-00-931-5568
NSN 5930-01-233-6826
NSN 6105-01-265-3112
NSN 6620-00-188-2560
NSN 5996-01-327-5027