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 5998-00-872-4257
NSN 6320-01-054-3046
NSN 5895-01-003-3012
NSN 5998-00-248-2791
NSN 6685-01-279-0647
NSN 5990-00-886-3685
NSN 6135-01-359-5798
NSN 5930-01-106-0771
NSN 5945-01-103-7954
NSN 6220-01-586-7741
NSN 7035-01-424-6825
NSN 6650-01-463-1894