The Department of Defense, through the Defense Logistics Agency, is conducting a Sources Sought notice to identify potential vendors for the procurement of Coupling, Regulated (NSN: 1680-01-397-6026) related to the KC-135 platform. The objective is to gather market research to assess the competitive landscape and explore the possibility of a Small Business Set-Aside for the procurement of spares, which may include manufacturing components, logistics support, and supply chain management. This initiative underscores the importance of engaging small businesses in government procurement strategies, ensuring effective sourcing for critical defense operations. Interested vendors are encouraged to submit their expressions of interest and Source Approval Request (SAR) packages to 423SCMS.Requirements@us.af.mil, with no funds allocated for inquiries related to this market research.