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 Data Transfer Unit, identified by NSN 7R-5999-016517373-CC, with a quantity of 193 units required. This procurement is critical as the item is flight critical, necessitating Government source approval prior to contract award, and only previously approved sources will be solicited. Interested vendors must provide comprehensive technical data and documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, with a submission deadline of 45 days from the notice publication date. For inquiries, contact Jacob A. Tarini at (215) 697-3563 or via email at jacob.tarlini@navy.mil.