RFI Vacuum Shell Weldment for SNS Cold Box

The Department of Energy, through Thomas Jefferson National Accelerator Facility (Jefferson Lab), is issuing a Request for Information (RFI) to identify qualified sources for the fabrication and delivery of a vacuum shell weldment for the Spallation Neutron Source (SNS) sub-atmospheric cold box replacement project. This procurement falls under NAICS code 332999 (All Other Miscellaneous Fabricated Metal Product Manufacturing) and PSC code 3695 (Miscellaneous Special Industry Machinery), indicating a specialized fabrication requirement. The RFI was posted on December 9, 2025, with responses due by December 19, 2025, providing potential bidders a ten-day window to submit information demonstrating their capabilities and experience in vacuum shell weldment fabrication. As a pre-solicitation notice, this RFI is designed to gather market information and identify capable vendors before a formal solicitation is released, rather than to solicit binding proposals or establish evaluation criteria for award.

This pre-solicitation notice carries no set-aside designation, meaning all qualified vendors regardless of business size or classification are eligible to respond. The notice does not disclose incumbent contractors, specific award values, budget ranges, or detailed technical specifications, which is typical for RFI documentation at this stage of the procurement process. Interested vendors should monitor future postings for the formal solicitation, which will contain detailed requirements, evaluation criteria, and award information. Potential bidders are encouraged to submit their capabilities statements and relevant experience to position themselves for consideration when the full solicitation is released by Jefferson Lab.