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 6240-00-758-3367
NSN 5965-00-177-2932
NSN 5935-01-409-2463
NSN 6130-01-447-3164
NSN 5905-01-185-6262
NSN 6645-01-435-8356
NSN 5855-01-388-2424
NSN 5915-01-020-3827
NSN 2925-00-225-5386
NSN 5999-01-177-8243
NSN 6220-01-621-2888
NSN 6145-00-968-6603