The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 14 units of the Relay Assembly Group, identified by NSN 7R-5945-014067773-EY. 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 necessary for full and open competition is not available. Interested parties must provide detailed documentation regarding their qualifications and experience in manufacturing similar items, as well as comply with the NAVSUP WSS Source Approval procedures. Proposals must be submitted within 45 days of this notice, and inquiries can be directed to Kimberly Flores at (215) 697-6549 or via email at Kimberly.Flores@navy.mil.