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 6240-00-445-4765
NSN 6645-00-825-5677
NSN 5835-01-023-8733
NSN 6135-01-052-9634
NSN 6110-00-826-0394
NSN 5965-00-768-4366
NSN 5985-01-175-5793
NSN 5998-01-180-6856
NSN 5965-00-959-4910
NSN 5960-00-258-9292
NSN 5930-01-196-6137
NSN 6240-01-571-7706