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.
Classification: Check valves of copper having a pressure rating of 850 kpa or over
NSN
NSN 5990-01-188-7309
NSN 4140-00-401-7851
NSN 5999-00-607-1056
NSN 5915-01-380-1464
NSN 5999-01-032-4924
NSN 5920-01-218-6191
NSN 4140-01-217-3214
NSN 5855-01-444-4228
NSN 5935-01-123-8344
NSN 6240-00-326-2966
NSN 5915-00-480-9649