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 6620-01-138-8250
NSN 5915-00-238-3696
NSN 6220-00-675-1823
NSN 5965-00-925-1725
NSN 6145-01-202-2837
NSN 6320-00-583-3104
NSN 5935-01-431-5756
NSN 6150-01-583-9391
NSN 5925-01-541-4758
NSN 7035-00-188-6674
NSN 5960-01-577-0628
NSN 6130-01-302-0371