This is a sources sought notice for market research, not a solicitation, for the ADAPTER ASSY, DRIVE (NSN 1615-01-140-0972, P/N 145D3407-10) supporting the CHINOOK weapon system, with the Defense Logistics Agency located at Redstone Arsenal, Alabama. The proposed NAICS code is 336413 with a size standard of 1,250 employees. The government does not own the data rights, making reverse engineering uneconomical, so the acquisition is currently planned as sole source under FAR 6.302-1, but all business types are encouraged to respond. Interested firms must meet prequalification requirements, seek source approval via the AvMC public website, and be responsible for all manufacturing, supply chain, and engineering aspects. This notice is for planning only, with no commitment to award and no funds available for response preparation.