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 5960-00-273-3260
NSN 5950-00-789-3025
NSN 5975-01-626-2213
NSN 5998-01-111-9015
NSN 5895-01-464-4990
NSN 5925-01-425-1842
NSN 5935-00-419-9924
NSN 4140-01-442-0204
NSN 4140-01-065-0314
NSN 6130-01-352-9931
NSN 6645-01-064-2749
NSN 6220-00-176-5912