Thermally Insulating Waveguide

The National Institute of Standards and Technology (NIST) seeks firm-fixed-price quotations for thermally insulating waveguides, with proposals due August 12, 2026 and questions due July 29, 2026. Amendment 01 extended the close date from August 7 to August 12. This is an unrestricted acquisition using simplified acquisitions procedures under FAR Part 12 for commercial products.

Place of performance and acceptance is NIST-Boulder, Mail Stop 672.01, Boulder, Colorado 80305. The procurement includes four line items: six WR-10 waveguides (CLIN 0001, 75–110 GHz), six WR-6.5 waveguides (CLIN 0002, 110–170 GHz), and optionally six units each of WR-4.3 (CLIN 0003, 170–260 GHz) and WR-3.4 (CLIN 0004, 220–330 GHz) waveguides on a separately priced basis. All items must be new (not refurbished), feature IEEE 1785.2-2016 standard compliant flanges, and be delivered within 16 weeks of award. WR-10 and WR-6.5 items require nominal dimensions specified in the specifications document and material thermal conductivity less than 0.25 Wm⁻¹K⁻¹.

NAICS code is 334515 with a small business size standard of 750 employees; PSC code is 6625. Quotations must include three volumes: Technical Quotation (demonstrating technical capability and past performance within five years), Price Quotation (with unit prices, total amounts, shipping costs, and SAM.gov registration details), and Terms and Conditions. Award will be made to the single firm offering the most advantageous proposal considering technical capability, past performance, experience, and price in descending order of importance. Contractors must maintain active SAM.gov registration and possess an active Unique Entity Identification Number and Export Control Classification Number at time of award. Quotations must be submitted electronically to lia.arthofer@nist.gov.