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 5935-00-256-9015
NSN 5960-01-599-9821
NSN 6220-01-021-8738
NSN 6650-01-463-2274
NSN 6645-00-971-2023
NSN 5915-01-056-5141
NSN 6105-01-442-3465
NSN 5895-01-132-0895
NSN 6105-01-185-7982
NSN 6220-01-446-3741
NSN 6135-01-466-3980
NSN 5996-00-974-9583