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 6130-01-383-1518
NSN 7035-01-461-7742
NSN 5998-01-197-1358
NSN 7035-00-803-3056
NSN 5835-01-412-0344
NSN 6145-01-609-2291
NSN 5935-00-362-3873
NSN 5835-01-033-8756
NSN 5895-00-893-2627
NSN 5925-01-110-1918
NSN 5930-00-241-0126
NSN 5930-00-915-1408