The Boeing Co., St. Louis, Missouri, has been awarded a $79,100,000 indefinite-delivery/indefinite-quantity contract for B61-12 Tail Kit Assembly (TKA) surveillance and sustainment support. This contract provides the government with engineering services and technical expertise as needed across various disciplines for B61-12 TKA support. Work will be performed in St. Louis, Missouri, and is expected to be completed by Sept. 14, 2026. This contract includes Foreign Military Sales to NATO members that are to be determined. This award is the result of a sole source acquisition. Fiscal 2021 operations and maintenance funds in the amount of $352,045 are being obligated at the time of award in the initial task order. Air Force Nuclear Weapons Center, Kirtland Air Force Base, New Mexico, is the contracting activity (FA9422-21-D-0001).