The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of intercommunication systems, identified by NSN 7R-5831-015817896-E7, with a quantity of 20 units required. This procurement necessitates engineering source approval due to the flight-critical nature of the item, which mandates that only approved sources can provide the required parts to ensure quality and compliance with government standards. Interested vendors must submit detailed proposals that include necessary technical data and evidence of prior experience, as the government intends to negotiate with only one source under FAR 6.302-1. For inquiries, contact Kimberly Flores at (215) 697-6549 or via email at Kimberly.Flores@navy.mil, with proposals due within 45 days of the notice publication.