NASA's National Aeronautics and Space Administration (NASA) is seeking to procure a Pfeiffer Model A604H ELT Dry pump and a spare of the same model to replace an obsolete foreline pump in its Oxford Instruments Plasma Pro100 Deep Reactive Ion Etch (DRIE) system at the Goddard Space Flight Center. The procurement aims to enhance the efficiency and reliability of vacuum systems critical for ongoing aerospace research and development, with specific requirements for high energy efficiency, corrosion resistance, and extended monitoring capabilities. Interested organizations must submit their capabilities and qualifications in writing to Dorothy Baskin at dorothy.s.baskin@nasa.gov by 11:59 a.m. Eastern Standard Time on November 8, 2024, to be considered for this sole source contract, which is expected to be awarded under FAR Part 12 and FAR Part 13 guidelines.