This is a Sources Sought Notice from the Defense Logistics Agency (DLA) Weapons Support to identify companies capable of manufacturing a specific fire detector system sensing element (NSN 6340-01-471-2603). The item is currently produced by Lockheed Martin, Simmonds Precision Products, and Kidde Technologies, and interested parties must submit a response by June 3, 2026, at 2:00 PM Eastern Time. No budget information is provided, and the notice is for market research only, not a solicitation or commitment to award a contract. Performance of services would be at the contractor’s facility, as no specific location is mandated. Companies must submit a Source Approval Request (SAR) package to demonstrate their ability to manufacture the item to required quality standards.