The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the procurement of a specific aircraft propeller component, identified by NSN 7R-1610-015636034-V2. This procurement requires engineering source approval due to the critical nature of the part, necessitating that only approved sources may submit proposals, as the item is flight critical and 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 Sara M. Hojnowski at (215) 697-2198 or via email at SARA.HOJNOWSKI@NAVY.MIL.