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 6650-01-564-3025
NSN 5835-01-198-6177
NSN 6150-00-113-8619
NSN 5975-01-348-8687
NSN 6145-00-226-9499
NSN 5935-01-142-2197
NSN 6610-00-566-8390
NSN 6135-00-927-5848
NSN 6105-00-527-2193
NSN 5925-01-280-5451
NSN 5965-01-621-4529
NSN 5945-00-201-0273