NASA/NSSC intends to issue a sole source contract to Siemens Energy Inc. for TDT Vacuum Blower spare parts for the existing DR20925CL TCP system. Performance of the services will be located at NASA’s Langley Research Center (LARC). No budget amount is specified in the notice. Interested organizations may submit their capabilities and qualifications in writing by 4:00 PM Central Standard Time on July 17, 2026, for consideration of a competitive procurement. The government will evaluate submissions solely to determine whether to compete this requirement.