NASA/NSSC intends to issue a sole source contract to KISTLER INSTRUMENT CORPORATION for High Resonant Frequency Shock Accelerometer Instrument Procurement, as they are determined to be the sole provider. Performance will be located at NASA/Marshall Space Flight Center (MSFC). Interested organizations may submit their capabilities and qualifications in writing for evaluation to determine if a competitive procurement is possible. No specific budget amount or non-bid timeline is mentioned in the description.