The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking proposals for the repair and modification of a hydraulic fan assembly, specifically NSN 7R-1660-013021006-H1, with a quantity of 36 units required. This procurement is critical as the item is flight essential, necessitating government source approval prior to contract award, which limits competition to previously approved sources only. Interested vendors must provide detailed technical data and documentation as outlined in the NAVSUP Source Approval Information Brochures, and failure to comply will result in disqualification from the bidding process. For further inquiries, potential bidders can contact Svitlana Shvets at (215) 697-6278 or via email at svitlana.shvets.civ@us.navy.mil.