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 radio set, identified by NSN 7R-5826-014392708-JT, with a quantity of four units required. This procurement necessitates engineering source approval to ensure the quality of the part, as it is flight critical and requires that only approved sources are solicited for the contract. Interested vendors must provide detailed technical data and qualifications in accordance with NAVSUP's Source Approval Information Brochures, as offers lacking the necessary documentation will not be considered. Proposals must be submitted within 45 days of the notice, and inquiries can be directed to Alyssa T. Thieu at (215) 697-0169 or via email at ALYSSA.THIEU@NAVY.MIL.