The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of a Direction Finder SE, identified by NSN 7R-5826-014782375-QF and reference number 622-0902-206, with a quantity of one unit required. This procurement necessitates engineering source approval due to the flight-critical nature of the item, which mandates that only approved sources can supply or repair the part to ensure quality and compliance with government standards. Interested vendors must submit detailed technical data and qualifications as outlined in the NAVSUP WSS Source Approval Information Brochures, with proposals due within 45 days of the notice publication. For further inquiries, interested parties can contact Danielle Diciacco at (215) 697-5970 or via email at DANIELLE.DICIACCO.CIV@US.NAVY.MIL.