DLA is conducting market research to identify potential manufacturing/supply sources and assess whether future efforts can be competitive or set aside for small business. It seeks qualified sources for a fuel integration tester (NSN 4920-01-521-2579, Part SK2000FIT) supporting the BLACKHAWK weapon system, under NAICS 334514 with an 850-employee size standard. Because competitive data and adequate specifications are unavailable, the acquisition is currently proceeding under FAR 6.302-1(a)(1) as a sole-source effort, though all business types are encouraged to identify themselves and seek source approval. Contractors must meet prequalification requirements and be capable of recurring/nonrecurring engineering to become qualified, plus all manufacturing/production aspects such as supply chain management, logistics, parts forecasting, long-lead procurement, obsolescence handling, and final delivery. The effort is associated with DLA at Redstone Arsenal, Alabama; no funds are available to prepare responses, and the government is under no obligation to award a contract.