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 5910-01-446-1899
NSN 6620-00-151-5363
NSN 6130-01-044-7373
NSN 6105-01-314-2902
NSN 6650-01-463-2274
NSN 5965-01-483-7244
NSN 5925-01-124-2441
NSN 5996-01-654-1697
NSN 2925-01-350-0200
NSN 7035-01-462-5766
NSN 5930-00-433-3920
NSN 5998-01-346-3221