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 2925-00-167-2641
NSN 6105-00-982-4723
NSN 5950-01-069-6979
NSN 5999-01-468-5079
NSN 5835-00-659-9547
NSN 6145-01-261-1940
NSN 7035-01-265-0216
NSN 6685-01-508-2249
NSN 5915-01-654-8872
NSN 5999-01-482-4861
NSN 6650-01-274-6621
NSN 6320-01-285-1922