The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 170 units of a flight-critical transfer unit, requiring repair or modification. This procurement is subject to Government source approval prior to contract award, as the technical data available has not been deemed adequate for full and open competition, meaning only previously approved sources will be solicited. Interested parties must submit the necessary documentation for source approval along with their proposals, and the deadline for submissions is 45 days from the notice publication date. For further inquiries, potential bidders can contact Jacob A. Tarini at (215) 697-3563 or via email at jacob.tarlini@navy.mil.