The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the acquisition of 8 units of a flight instrument part identified by NSN 7R-6610-016912108-KB. 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 and manufacturing knowledge are not readily available to the Government. Interested parties must provide comprehensive documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, and proposals must be submitted within 45 days of this notice, with inquiries directed to Chad M. Fichter at (215) 697-2782 or via email at CHAD.FICHTER@NAVY.MIL.