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 5965-00-134-0883
NSN 6105-00-362-1361
NSN 5945-01-268-1827
NSN 5985-00-345-0457
NSN 6150-00-286-0827
NSN 5925-00-469-5300
NSN 5905-01-245-8472
NSN 5915-01-633-9845
NSN 7035-00-727-4068
NSN 2925-01-039-6856
NSN 6150-01-116-2180
NSN 6645-01-633-1852