The Department of Defense, through the NAVSUP Weapon Systems Support, is seeking a sole source procurement for the repair of sonar receivers, specifically under the solicitation N00383-25-Q-R398. The requirement includes the repair of five units of the sonar receiver, part number 8002270, with the expectation that the award will be made to L-3 Communications Oceans System, the Original Equipment Manufacturer (OEM) and only known source for these items. This procurement is critical for maintaining operational capabilities, as the government does not possess the necessary data or rights to procure these items from alternative sources. Interested parties must submit their capability statements to Linda Vong at linda.vong2.civ@us.navy.mil within 15 days of this notice, with proposals accepted for consideration within 45 days. This opportunity is not a Total Small Business Set-Aside, and electronic submission procedures will be utilized for the solicitation.