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 5950-00-405-8064
NSN 6620-01-300-2631
NSN 5835-00-605-8237
NSN 5925-01-171-8932
NSN 5920-01-319-1864
NSN 6320-01-140-9343
NSN 6105-01-149-2852
NSN 2925-01-364-7926
NSN 5996-00-248-7061
NSN 2925-01-043-9786
NSN 5965-01-614-0156
NSN 5930-01-348-8962