Special Notice: DEPT OF DEFENSE, DEPT OF THE AIR FORCE is seeking AIRFRAME STRUCTURAL COMPONENTS. The service/item being procured is NSNS: 1560010596480FJ: 1560010631116FJ NOUN,STIFFENER,AIRCR P/N:160D61131-3 AND 160D611631-4. These components are typically used for aircraft rib and stiffener structures.