The Department of Defense, through the Naval Air Systems Command, intends to negotiate a sole source delivery order with Sikorsky for the redesign of the CH-53K On Board Inert Gas Generating System (OBIGGS). This procurement aims to incorporate design improvements that enhance performance, reliability, and support for flight testing, as Sikorsky is the sole producer with the necessary technical data and expertise for the CH-53K® aircraft. The contract will be executed under the authority of 10 U.S.C. 2304(a)(1) and FAR 6.302-1, emphasizing the unique capabilities of Sikorsky in fulfilling these requirements. Interested parties may express their interest and capabilities in writing to the designated contacts, Tyler Scott and Kevin Ritter, via email or mail, as this notice is not a request for competitive proposals.