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 6240-01-205-0005
NSN 5990-00-277-3763
NSN 5935-00-408-1625
NSN 5925-01-133-7246
NSN 5930-01-368-7877
NSN 6150-01-503-6204
NSN 6105-01-523-1027
NSN 5925-01-200-7813
NSN 5999-00-411-9498
NSN 5925-01-075-4598
NSN 5920-01-088-6554
NSN 5855-01-599-7164