The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking to procure 57 units of an audio control panel, specifically under the NSN 7R-1680-015855462-P8, for repair and modification purposes. This procurement requires engineering source approval due to the flight-critical nature of the item, necessitating that only approved sources may submit proposals, as the technical data available does not support full and open competition. Interested parties must provide detailed documentation as outlined in the NAVSUP Source Approval Information Brochures, and proposals must be submitted within 45 days of this notice, with the primary contact for inquiries being Kelly A. Gipson at kelly.a.gipson2.civ@us.navy.mil.