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 6150-01-651-7647
NSN 5910-00-914-7834
NSN 7035-01-365-4087
NSN 6105-00-075-9786
NSN 6320-01-125-3361
NSN 5930-01-367-1857
NSN 2925-00-969-8340
NSN 6240-01-100-1279
NSN 5960-00-681-9842
NSN 5945-01-409-2718
NSN 6320-01-119-3935
NSN 6645-00-353-6659