NASA/NSSC requires GRS Calibration Services and intends to award a sole source contract to Crystal Instruments Corporation, as they are determined to be the sole provider. Performance of the services will be located at NASA’s Armstrong Flight Research Center (AFRC). Interested organizations may submit their capabilities and qualifications in writing by 4:00 p.m. Central Standard Time on June 22, 2026, for consideration of a competitive procurement. No specific budget amount is mentioned in the description. This notice serves to determine if competition is feasible, with the government retaining discretion over the final acquisition approach.