The Department of Defense, through the Naval Undersea Warfare Center Division Newport (NUWCDIVNPT), is seeking contractors for the production of DT-513 Series Hydrophones to support the Hull Sensor Systems (HSS) Program. The contract will involve the design, manufacture, testing, packaging, and delivery of up to six first article hydrophones and an estimated 3,731 production units, adhering to the Critical Item Performance Specification (CIPS) requirements. These hydrophones are crucial for underwater sound detection and navigation, playing a vital role in naval operations. Interested parties should note that the anticipated Request for Proposal (RFP) release is expected in February 2026, with an estimated award date in October 2026. For inquiries, contact Julianna Ricci at julianna.b.ricci.civ@us.navy.mil or Keri Gunn at Keri.l.gunn.civ@us.navy.mil.