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 6110-01-571-9934
NSN 6650-01-141-1582
NSN 5895-01-463-3357
NSN 5915-01-057-2824
NSN 6105-01-611-4382
NSN 6135-01-026-9960
NSN 6645-01-527-4223
NSN 5965-00-342-5126
NSN 6620-01-249-7206
NSN 5996-00-187-8072
NSN 6130-00-226-0417
NSN 5895-00-483-9720