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 5905-01-150-5562
NSN 4140-01-096-1596
NSN 6135-01-428-6069
NSN 5996-00-025-4872
NSN 5925-00-499-2160
NSN 6620-01-012-2852
NSN 5960-01-389-0629
NSN 5965-01-273-0943
NSN 6650-01-569-6358
NSN 5930-00-542-3901
NSN 5960-01-512-0233
NSN 5999-01-626-6670