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 6650-01-506-0386
NSN 5905-01-266-6232
NSN 5910-01-170-5760
NSN 5998-01-440-0606
NSN 6240-01-327-4120
NSN 6145-01-360-4335
NSN 5920-00-489-2202
NSN 5835-00-339-3020
NSN 5930-00-277-4704
NSN 5975-00-408-8152
NSN 6645-01-134-8137
NSN 4140-01-374-4673