This is a non-competitive, brand-name solicitation for a firm-fixed-price service contract to maintain a Thermo Fisher Scientific Attune NxT Flow Cytometer for the National Heart, Lung, and Blood Institute (NHLBI) in Bethesda, Maryland. The contract will be awarded solely to Thermo Fisher Scientific, as they are the only source for the required comprehensive service warranty and coverage. The associated NAICS code is 811210, and the requirement is not set aside for small businesses. No specific budget amount or submission timeline is mentioned in the description. Performance of services will occur at the NHLBI facility in Bethesda, Maryland.