Precision Machining of Stainless Steel Vacuum Flanges

The contract involves the fabrication of up to 90 high-precision stainless steel vacuum flanges for the Deep Underground Neutrino Experiment, with all units required to meet strict ConFlat compatibility and vacuum sealing standards. Both qualification and production units must be manufactured to exacting specifications to ensure operational integrity in high-vacuum environments, with full compliance to industry norms for material purity, dimensional accuracy, and surface finish. The work includes comprehensive testing and documentation to verify performance under operational conditions and to establish traceability throughout the production process. This subcontract is a Total Small Business Set-Aside under SBA guidelines, specifically designated for small businesses as defined by FAR 19.5, and is classified under NAICS code 332999 for other fabricated metal product manufacturing. The solicitation was posted on May 1, 2026, with a response deadline of May 7, 2026, and the performance location is designated as Upton, New York, 11973. The contract is administered by Brookhaven National Laboratory, a Department of Energy contractor, and all deliverables must align with the project’s stringent technical and compliance requirements for large-scale scientific infrastructure.