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 6110-01-642-1279
NSN 6240-01-340-7591
NSN 5910-00-905-6425
NSN 5930-00-411-7628
NSN 5910-01-050-9169
NSN 6130-01-505-7699
NSN 6610-01-086-5334
NSN 5855-01-125-4768
NSN 7035-00-300-3208
NSN 6105-00-398-4673
NSN 6130-01-053-5559
NSN 6150-01-003-6295