Summary of Justification and Approval (J&A) for Sole-Source Contract

This is a Justification and Approval (J&A) document for a contract modification to Navy contract N0002420C5519 issued by the Naval Sea Systems Command, Surface Systems Contracts Division. The modification authorizes a sole-source award to Northrop Grumman Systems Corporation (NGSC) for FY 2026 procurement of Surface Electronic Warfare Improvement Program (SEWIP) Block 3 Hemisphere and Quadrant units and associated ancillary equipment, with work performed in Linthicum Heights, Maryland.

The procurement covers SEWIP Block 3 systems that provide early detection, signal analysis, threat warning, and protection from Anti-Ship Missiles (ASMs), and enhanced Electronic Attack (EA) capability for Surface Electronic Warfare (EW) countermeasures. Execution occurs in two phases: initial award includes three Hemisphere units, one Quadrant unit, and associated hardware funded with FY25 appropriations; maximum stepladder quantities of four Hemisphere units, one Quadrant unit, and ancillary hardware will be available as priced option CLINs upon receipt of FY26 appropriations. The estimated dollar value and funding details are redacted in the document. The statutory authority permitting sole-source procurement is 10 U.S.C. 3204(a)(1). The justification establishes that NGSC is the only responsible source capable of satisfying Navy requirements without unacceptable delay, citing NGSC's status as original equipment manufacturer (OEM), specialized experience, familiarity with Technical Data Package (TDP), required infrastructure, and existing completion of initial production efforts. Alternative sources would incur approximately 40-month delays incompatible with Navy fielding plans. The document notes efforts to solicit competition through industry days, meetings, and publication of the proposed sole-source modification on sam.gov, with no competing responses received. Senior Procurement Executive approval is provided for the sole-source solicitation under 10 U.S.C. 3204(a)(1), dated December 12, 2025.