The Defense Logistics Agency is conducting market research through a Sources Sought Synopsis to identify potential manufacturing/supply sources and determine whether future efforts can be competitive or set aside for small business. The item sought is a gate valve (NSN 482-00-147-6737, Part No. HM022-420) supporting the CHINOOK weapon system, with DLA Redstone Arsenal, Alabama, seeking qualified sources under NAICS 336413 (1250-employee size standard). Because the data needed for a competitive acquisition is not physically available or economically obtainable and adequate specifications cannot be drafted, the acquisition is currently being procured under FAR 6.302-1(a)(1) as having only one responsible source. Interested businesses, including 8(a), small, small disadvantaged, SDVOSB, HUBZone, and women-owned concerns, must meet prequalification requirements and are encouraged to pursue source approval through AvMC; contractors will bear recurring/nonrecurring engineering costs to become qualified and be responsible for all production aspects such as supply chain, logistics, forecasting, long-lead procurement, obsolescence, and final delivery. This notice is for informational/planning purposes only, is not a solicitation or commitment to award, and responses are voluntary with no funds available to pay for preparation.