Valve size 4.000 in.
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 5925-01-084-3165
NSN 6150-00-339-3731
NSN 5960-01-273-0942
NSN 5835-00-474-6085
NSN 6145-00-948-1456
NSN 5905-01-431-9177
NSN 5950-00-228-0131
NSN 6105-01-162-8775
NSN 6135-01-515-4260
NSN 5965-00-128-8878
NSN 6105-01-428-8921
NSN