The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of internal hoists, identified by NSN 7R-1730-014741646-YR, with a quantity of 10 units required. This procurement necessitates engineering source approval due to the flight-critical nature of the item, which mandates that only approved sources may submit proposals, ensuring the quality and reliability of the parts. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP Source Approval Information Brochures, and proposals must be submitted within 45 days of the notice publication. For further inquiries, Alyssa T. Thieu can be contacted at (215) 697-0169 or via email at ALYSSA.THIEU@NAVY.MIL.