The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 28 units of the Circuit Breaker AY, identified by NSN 7H-5999-017233700-X5. This procurement is set aside exclusively for small businesses, as the government intends to negotiate with only one source due to the proprietary nature of the data required for the purchase or repair of this part, which cannot be reverse-engineered. The delivery of the items is to be made to DLA Distribution Norfolk, Virginia, and interested parties must submit their proposals or capability statements within 45 days of the notice publication, with the primary contact for inquiries being Collin A. Browning at COLLIN.BROWNING@NAVY.MIL or by phone at (717) 605-1667.