Solicitation for 4K Recirculating Cryostat

8/03/26: Amendment 02 is issued to hereby extend the response due date to 6:00 pm EST on Monday, August 3, 2026. 7/28/26: Amendment 01 (attached) is issued to provide responses to all solicitation questions received. The National Institute of Standards and Technology (NIST) has a requirement at its Gaithersburg, MD campus for a 4K recirculating cryostat with optical access and microwave access. Please see attached Solicitation# 1333ND26QNB680374 and related attachments 1 (Statement of Work) , and 2 (Applicable Provisions and Clauses) for full details.