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 global positioning system component, identified by NSN 0R-6605-016982855-RQ. The procurement requires Government source approval prior to contract award due to the flight-critical nature of the item, and only previously approved sources will be considered for this contract. Interested vendors must submit comprehensive documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, and failure to provide the necessary information will result in disqualification from the award process. For further inquiries, interested parties can contact Kathryn S. Hull at (215) 697-6646 or via email at KATHRYN.HULL@NAVY.MIL.