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 6650-00-833-4002
NSN 2925-01-609-0417
NSN 5905-00-185-7276
NSN 5905-00-072-3093
NSN 5960-01-536-9763
NSN 5935-01-288-0588
NSN 7035-01-062-0184
NSN 6130-01-364-8830
NSN 5950-01-131-8548
NSN 5895-00-870-5598
NSN 5920-00-427-2985
NSN 5999-01-629-5517