The Department of Defense, through the Naval Air Systems Command (NAVAIRSYSCOM), intends to negotiate a sole-source contract with Sikorsky Aircraft Corporation for Integrated Logistics Support (ILS) products and management for the CH-53K Helicopter. This procurement aims to ensure the sustainment of the CH-53K during its production and operational phases, leveraging Sikorsky's unique expertise as the sole designer and producer of the aircraft. The anticipated contract will be structured as a Cost Plus Fixed-Fee (CPFF) delivery order under Basic Order Agreement N00019-23-G-0002, with funding allocated from FY27 and FY28 budgets. Interested parties may express their interest and capabilities in writing to the designated contacts, John Elliott and Jamie Schoemaker, before the closing date of the notice, as this opportunity is not open for competitive proposals.