This is a market research notice for the C-130J Radio Control Set, with the government intending to award a sole-source contract to Collins Aerospace. The notice states Collins Aerospace is the only known source with the necessary technical data and capabilities to produce this item. Other interested parties may identify their interest and capability by emailing the listed contacts no later than April 3, 2026. This is not a request for proposal and does not constitute a formal solicitation. No budget, performance location, or other procurement timelines are specified.