The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support Mechanics, is seeking to procure 10 units of the Ethernet Power Supply Assembly (NSN 7H-7025-998551633) under a presolicitation notice. This procurement is critical as the government does not possess the data or rights necessary to purchase or contract repair of this part from alternative sources, making it uneconomical to reverse engineer. Interested parties are invited to express their interest and capability to fulfill this requirement, although the government intends to negotiate with only one source under FAR 6.302-1. Proposals must be submitted within 45 days of the notice publication, and inquiries can be directed to Abigail R. Hurlbut at (717) 605-6805 or via email at abigail.r.hurlbut.civ@us.navy.mil.