The Department of Defense, through the Defense Logistics Agency (DLA) Aviation, is conducting market research via a Sources Sought Notice to identify potential suppliers for specific National Stock Numbers (NSNs) related to aircraft parts. The procurement aims to add these NSNs, which include components such as duct assemblies and check valves, to a long-term, sole-source contract with Derco, a Lockheed Martin company, with a performance period of one year and a five-year option. These components are critical for maintaining aircraft operational readiness and safety. Interested parties, particularly small businesses including HUBZone, 8(a), Service-Disabled Veteran-Owned, and Woman-Owned concerns, are encouraged to express their interest and capabilities by April 7, 2025, by emailing James Inman at james.inman@dla.mil.