B-1 Radar Engineering Support Program for the B-1B AN/APQ-164 Offensive Radar

The Department of the Air Force Materiel Command Lifecycle Management Center awarded a five-year, $76.594 million non-commercial IDIQ to Northrop Grumman Systems Corporation for B-1 Radar AN/APQ-164 engineering and sustainment services on May 22, 2026, under sole-source authority.

The award comprises a one-year base period valued at $13.888 million and four one-year options totaling $58.675 million, plus a six-month extension option worth $4.030 million, running from February 12, 2026 through February 11, 2031. The contracting office is AFLCMC/WBK at Tinker Air Force Base, Oklahoma. Ten Contract Line Item Numbers span multiple contract types: Fixed-Price, Cost-Plus-Fixed-Fee, Cost-Plus-Incentive-Fee, Fixed-Price Level of Effort, Cost-Reimbursable No Fee, and Not Separately Priced. Work includes personnel and equipment for analysis, design, manufacturing process improvements, testing, integration of advanced technology to address Diminishing Manufacturing Sources obsolescence issues, and radar laboratory facility sustainment. The sole-source justification rests on Northrop Grumman's status as the sole developer and manufacturer holding proprietary engineering data and exclusive access to critical test facilities; reverse engineering would require 10–15 years and $1–2 billion.