The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of power supply units, identified by NSN 7R-6120-015287505-YW, with a quantity of seven units required. This procurement is critical as the items are flight critical, necessitating government source approval prior to contract award, and only previously approved sources will be considered for this solicitation. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, and failure to submit the required data will result in disqualification from the award process. For further inquiries, interested parties can contact Christophe J. Ammerman at (215) 697-5047 or via email at CHRISTOPHER.AMMERMAN@NAVY.MIL.