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 5920-00-598-0469
NSN 5930-01-457-3382
NSN 6135-01-459-6424
NSN 5895-00-995-7110
NSN 6105-01-393-9069
NSN 5960-00-153-7115
NSN 5920-01-229-0623
NSN 6220-00-583-9889
NSN 5905-01-349-0796
NSN 5920-00-704-5718
NSN 6145-01-170-6398
NSN 4140-01-221-9255