The government is seeking sources capable of manufacturing NSN 6340-01-434-8887, Sensing Element Fir, with an estimated annual quantity of 40 each. Potential sources must be able to handle all labor, materials, and logistics for new manufacture, including supply chain management and long-lead time procurement. This is a market research effort to determine the procurement method for a future buy, not a current solicitation. Responses to this Sources Sought Notice must be submitted by June 8, 2026, at 2:00 PM Eastern Standard Time. No budget information or performance location is specified.