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 5965-01-429-0881
NSN 5855-01-476-4219
NSN 5999-01-139-5204
NSN 4140-01-199-5196
NSN 6610-00-102-2792
NSN 5945-00-188-8954
NSN 5945-01-392-1068
NSN 5930-01-121-0568
NSN 5905-00-154-1003
NSN 5985-00-256-2078
NSN 6650-00-968-5700
NSN 4140-00-761-0714