The Department of Defense, specifically the Naval Air Systems Command (NAVAIR), intends to negotiate a sole-source contract with Northrop Grumman Systems Corporation (NGSC) for the integration of an updated Tactical Receive Segment (TRS) software suite and associated firmware updates for the Embedded National Tactical Receiver (ENTR) in the E-2D aircraft. This procurement is essential to ensure the timely delivery of critical updates, as NGSC is the sole designer and manufacturer of the E-2D AHE aircraft weapon system, possessing the unique knowledge and experience necessary to fulfill the requirements without causing operational delays. Interested small businesses may explore subcontracting opportunities by contacting Ms. Vicky Harper-Hall at Northrop Grumman. This presolicitation notice is for informational purposes only, and the government is not obligated to solicit proposals or award contracts based on this notice.