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 5925-01-623-9249
NSN 5855-01-452-1406
NSN 5965-01-216-1994
NSN 5920-01-091-9014
NSN 5930-01-219-5284
NSN 5965-00-642-9879
NSN 5999-01-459-5625
NSN 7035-01-435-7962
NSN 5920-00-616-4087
NSN 6130-00-322-6460
NSN 6320-01-512-2031
NSN 4140-01-274-4762