Presolicitation notice from the Department of the Interior, US Geological Survey, is seeking an Ion Source for a TIMS/SPECTROMAT Mass Spectrometer. The Ion Source is uniquely designed by Spectromat to provide a stable intensity beam of elements for analysis. Spectromat has exclusive rights to the design of the Ion Source. The ion source from Spectromat GmbH is fully retractable, has a proprietary contact design for fast source exchange, and is fully optimized for MAT262 TI-Box mass spectrometers for highest ionization efficiency of 0.1% and designed for a large acceleration voltage scale from 7.7 to 9.2 kV. The Ion Source is to be delivered to Reston, VA within 244 days from the date the contractor receives the purchase order. This requirement will be awarded noncompetitively in accordance with FAR 13.106-1(b)(1). Interested parties may submit a bid, proposal, or quotation for consideration. The anticipated contract will be firm fixed-price. Vendors must be registered at https://www.sam.gov/portal/public/SAM/ to be awarded the contract. For more information, contact Rafael Anderson at rlanderson@usgs.gov.