The Department of Defense, through the Defense Logistics Agency (DLA) Aviation at Philadelphia, PA, is seeking proposals for the procurement of 13 units of the flight-critical actuator, NSN 7R-1680-013145838-VH. This procurement requires Government source approval prior to contract award, as the technical data available has not been deemed adequate for full and open competition, and only previously approved sources will be solicited. Interested vendors must provide detailed technical data and documentation as outlined in the NAVSUP Weapon Systems Support Source Approval Information Brochures, and proposals must be submitted within 45 days of the notice publication. For further inquiries, potential bidders can contact Michael W. Bauder at (215) 737-5103 or via email at MICHAEL.BAUDER@DLA.MIL.