The Department of Defense, through the Naval Air Systems Command (NAVAIR), intends to negotiate and award a sole-source contract to Northrop Grumman Systems Corporation (NGSC) for the LN-251 Interim Solution, which is critical for the E-2D aircraft's compliance with the FY27 mandate to utilize GPS M-code. This contract, structured as a Cost Plus Fixed Fee (CPFF) type, aims to procure the necessary integration services and manage government property projected to be excess following the completion of contracted production efforts. Given NGSC's unique position as the sole designer and manufacturer of the E-2D aircraft, they possess the essential knowledge and technical expertise required for this project. Interested parties may contact Androy Allen at androy.f.allen.civ@us.navy.mil or Evan Riedell at evan.n.riedell.civ@us.navy.mil for further information, and responses expressing interest must be submitted within fifteen days of this notice.