The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of the MLG Side Brace, identified by NSN 7R-1680-016176844-QF, with a quantity of four units required. This procurement necessitates engineering source approval due to the flight-critical nature of the part, which mandates that only approved sources can provide the item to ensure quality and compliance with government standards. Interested vendors must submit detailed qualifications and any necessary source approval documentation, as proposals lacking this information will not be considered. For inquiries, interested parties can contact Dianne L. Wydra at (215) 697-6681 or via email at Dianne.L.Wydra.CIV@US.Navy.MIL, with a proposal submission deadline of 45 days from the notice publication date.