Raytheon Co., Marlborough, Massachusetts, is being awarded $185,800,634 for a ceiling-price, delivery order (N00383-25-F-0NE1) under a previously awarded performance based contract (N00383-25-D-NE01) for the repair, upgrade, or replacement of 160 parts in two of the 13 major subsystems of the Aegis Weapon System: the MK99 fire control system, and the Army Navy Joint Electronics Type Designation Systems Water/Surface Ship, Radar, Surveillance and Control Transmitter Group. The contract includes supply response time performance metrics. Work will be performed in Chesapeake, Virginia (63%); and Andover, Massachusetts (37%), and work is expected to be completed by December 2026. Annual working capital funds (Navy) in the amount of $139,350,476 will be obligated at the time of award as an undefinitized contract action with a commitment of $46,450,158 for a year’s period of performance. Funds will not expire at the end of the current fiscal year. One company was solicited for this sole-source requirement under authority 10 U.S. Code 3204 (a)(1), with one offer received. Naval Supply Systems Command Weapon Systems Support, Philadelphia, Pennsylvania, is the contracting activity.