Stellant Systems Inc., Torrance, California, is awarded a $12,192,676 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for the procurement of Q-Band Traveling Wave Tubes. This contract includes an ordering period of five years. Production will be performed in Torrance, California, and is expected to continue through September 2029. Fiscal 2024 operations and maintenance (Navy) funds in the amount of $558,234 will be obligated on the first delivery order immediately following award of the basic contract, all of which will expire at the end of the current fiscal year. This contract was not competitively procured in accordance with 10 U.S. Code 3204(a)(1) (only one responsible source and no other supplies or services will satisfy agency requirements). The Naval Undersea Warfare Center Division, Newport, Rhode Island, is the contracting activity (N66604-24-D-T400).