The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of rechargeable batteries, specifically under the NSN 7R-6140-016198889-RQ. The procurement involves a quantity of 8 units, with delivery terms set to FOB Origin, and requires government source approval prior to contract award due to the flight-critical nature of the item. Interested vendors must provide comprehensive technical data and documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, as offers lacking this information will not be considered. For further inquiries, interested parties can contact Kathryn S. Hull at (215) 697-6646 or via email at KATHRYN.HULL@NAVY.MIL.