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 5950-01-020-9874
NSN 5835-01-459-8664
NSN 6150-01-578-6786
NSN 5975-01-184-2736
NSN 5998-00-987-3134
NSN 5910-00-728-4975
NSN 5965-00-677-1461
NSN 5920-01-125-6469
NSN 5930-01-020-1441
NSN 5910-01-172-1001
NSN 6240-00-504-6583
NSN 6240-01-367-1925