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 6320-00-225-7013
NSN 5835-01-508-2528
NSN 7035-00-679-9027
NSN 6220-00-050-8485
NSN 6135-01-156-4627
NSN 6645-00-134-9358
NSN 5950-01-378-6705
NSN 5920-01-511-3996
NSN 5985-01-360-0694
NSN 6650-01-614-7328
NSN 5998-00-420-4275
NSN 5855-01-143-4470