The Naval Air Systems Command intends to award a sole source, firm-fixed-price delivery order to Raytheon Company for High-Speed Anti-Radiation Missile (HARM) parts, including antenna processors, power supplies, and other components for sustainment and repairs. Performance will occur under an existing Basic Ordering Agreement, with work expected at Raytheon’s facility in Tucson, AZ. No budget amount is specified. This is not a request for competitive proposals, as Raytheon is the sole designer and manufacturer with unique technical data and expertise. Interested parties may respond before the closing date to indicate capability, but the government retains discretion not to compete the requirement.