The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of a hoisting unit, identified by NSN 7R-1680-016799708-V2, with a quantity of 37 units required for delivery FOB origin. This procurement necessitates engineering source approval due to the flight-critical nature of the item, which mandates that only approved sources with the requisite design capability and technical data may participate in the bidding process. Interested vendors must submit their proposals along with the necessary documentation for source approval, as outlined in the NAVSUP WSS Source Approval Information Brochures, within 45 days of this notice. For further inquiries, Alyssa T. Thieu can be contacted at (215) 697-0169 or via email at ALYSSA.THIEU@NAVY.MIL.