The National Institutes of Health (NIH) intends to award a firm-fixed-price purchase order to Hitachi High-Tech America for a maintenance agreement covering the Government-owned Hitachi S-4800 Scanning Electron Microscope, citing Hitachi as the only responsible source. The required services include all spare parts and components, unlimited on-site emergency service with a 48-hour response time, one preventive maintenance visit per period of performance, and all necessary parts and labor. Interested small businesses may submit a written capability statement demonstrating their ability to meet these requirements. An award is anticipated approximately five calendar days after the closing date of this notice, unless another vendor proves capable. No budget amounts or performance location are specified.