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 6610-00-839-9186
NSN 5985-00-187-7583
NSN 5910-01-338-0438
NSN 5915-01-352-1274
NSN 6145-00-473-8709
NSN 5965-00-322-9933
NSN 6135-00-255-1340
NSN 6650-00-323-8150
NSN 5999-00-960-8232
NSN 5950-00-450-8674
NSN 6240-01-563-5578
NSN 5990-01-548-3711