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 fuel pump for jet engines, identified by NSN 7R-2915-013935056-FQ, with a quantity of 20 units required. The procurement is limited to sources that have been previously approved by the Government due to the flight-critical nature of the item and the lack of available technical data for alternative sources. Interested vendors must submit a proposal along with the necessary documentation for source approval, as offers that do not meet these requirements will not be considered. For further inquiries, interested parties can contact Gina P. Sassane at (215) 697-2198 or via email at GINA.P.SASSANE.CIV@US.NAVY.MIL, with proposals due within 45 days of the notice publication.