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 5920-01-078-9497
NSN 5925-01-226-5942
NSN 6650-00-842-5463
NSN 5975-01-317-3759
NSN 6135-01-506-0759
NSN 5915-01-604-0185
NSN 6240-01-583-3770
NSN 5998-01-208-6450
NSN 6110-00-097-8394
NSN 5965-01-543-4934
NSN 6650-01-146-5000
NSN 5935-01-524-7455