Flight safety critical
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 materials other than copper, iron or steel
NSN 6110-00-155-0794
NSN 5960-00-174-1867
NSN 5855-00-427-7848
NSN 6650-01-333-9155
NSN 5915-00-980-4418
NSN 5915-01-012-2964
NSN 5905-01-244-8862
NSN 4140-01-614-8479
NSN 5998-01-143-9186
NSN 5920-01-548-2986
NSN 5935-01-121-9205
NSN 5950-01-444-1302