# RFI Vacuum Shell Weldment for SNS Cold Box

Canonical: https://abierto.us/opportunities/jsa26s120925

- Solicitation number: JSA-26-S120925
- Notice type: Sources sought
- Status: Closed. Deadline was December 19, 2025 at 4:00 PM EST
- Department: Department of Energy
- Contracting office: Jefferson Lab - DOE Contractor (899041)
- NAICS: 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing
- Product or service code: 3695 Miscellaneous Special Industry Machinery
- Place of performance: Virginia
- County: City of Newport News (FIPS 51700). https://abierto.us/counties/city-of-newport-news-va-51700
- First posted: December 9, 2025
- Last posted: December 9, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/ac7dda3f563d4e608b6e2b68154d9fd1/view

## Description

Thomas Jefferson National Accelerator Facility (aka Jefferson Lab) is seeking to identify sources for fabrication and delivery of a vacuum shell weldment as part of the Spallation Neutron Source (SNS) sub-atmospheric cold box replacement project. Jefferson Lab is a nuclear physics research facility under contract to the U.S. Department of Energy.

## Publications

- December 9, 2025: Sources sought, due December 19, 2025 at 4:00 PM EST. Notice ac7dda3f563d4e608b6e2b68154d9fd1. https://sam.gov/workspace/contract/opp/ac7dda3f563d4e608b6e2b68154d9fd1/view

## Points of contact

- Ebony Beaver, beaver@jlab.org, 7572697814

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/jsa26s120925.