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 6320-01-227-2648
NSN 5945-01-453-9675
NSN 5950-01-346-0598
NSN 6620-01-449-2730
NSN 5935-01-382-6379
NSN 6150-01-106-7947
NSN 5990-00-398-0507
NSN 5965-01-321-9598
NSN 6240-00-932-1331
NSN 6105-01-204-7176
NSN 5925-00-907-6342
NSN 5935-01-468-0801