This Solicitation opportunity from Department Of Energy was posted on June 25, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.
Chamber Tubing
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SLAC National Accelerator Laboratory, operated by Stanford University under the U.S. Department of Energy, is soliciting a firm-fixed-price subcontract for the fabrication of ultra-high vacuum chamber tubing components in accordance with stringent technical specifications. The requirement is for 159 total units of 316L stainless steel tubing in six distinct lengths, all conforming to Drawing PF-444-161-25 Rev.01 and governed by multiple SLAC-specific technical documents including SC-700-8660-47 Rev.19, SC-700-866-49 Rev.5, and INJ-98 Rev.6. The tubing must meet exact dimensional tolerances: an outside diameter of 1.875 inches with a tolerance of +0.000 inch/-0.007 inch, wall thickness of 0.012 inch ±0.001 inch, and length deviations no greater than ±0.005 inch. Straightness must not exceed 0.001 inch per inch of length, and surface finish on the inner surface must be ≤16 µin Ra with outer surfaces ≤63 µin Ra. Fabrication requires seamless or welded tubing using ASTM A269 or ASTM A240/A240M compliant materials, with welds performed via inert gas-purged TIG without filler metal, and weld bead projection limited to 0.002 inch. All cutting and machining must avoid deformation or contamination; no silicon or sulfur-based fluids are permitted, and deburring must produce a maximum 0.005 inch radius. Final surfaces must be passivated per ASTM A967, and if mechanically polished, electropolished per ASTM B912. Contaminant embedding from grinding or abrasive materials is strictly prohibited, and all cleaning must use only approved non-chlorinated, non-brominated, non-sulfur-based solvents. Each tube must be individually heat-sealed in plastic, labeled with drawing number, nominal length, and PO number, then packed in secure cardboard boxes. Proposals must be submitted by COB July 3, 2026, to [email hidden], and must include a completed Representations & Certifications Rider, written acceptance of SLAC’s FP Commercial Supplies-Services Terms and Conditions (August 2023), and a Buy American
General Info
NAICS
Place of Performance
Menlo Park, CA, 94025, USASet-Aside
Timeline
Submission Closed
Organization & Contact Information
Full Description
SLAC National Accelerator Laboratory is operated by Stanford University for the Department of Energy. As a management and operating contractor, subcontracts awarded by the Laboratory are not Federal procurements, and are not directly subject to the Federal Acquisition Regulations in 48 CFR. Nonetheless, certain Federal laws, Executive Orders, and regulations may affect our DOE approved purchasing system, as required by statute, regulation, or contract terms and conditions.
Please review the quote and provide your best and final offer for both price and lead-time. Kindly also have the quotation revised to today’s date and address the quote to my attention.
The follow has been attached for you to complete and review:
- Representations & Certifications Rider
- Confirm Attached SLAC terms are accepted: FP Commercial Supplies-Services T&Cs (August 2023)
- Drawing_PF-444-161-25_Rev1
- SC-700-8660-47 Rev.19
- SC-700-866-49 Rev. 5
- INJ-98 Rev.6
- Quote# Q_6425_Rev_5
Required item(s) listed below:
- PF-444-161-25_Rev.01: Length of Tube 17.973 inches – QTY: 90
- PF-444-161-25_Rev.01: Length of Tube 4.89 inches – QTY: 36
- PF-444-161-25_Rev.01: Length of Tube 22.535 inches – QTY: 9
- PF-444-161-25_Rev.01: Length of Tube 25.095 inches – QTY: 9
- PF-444-161-25_Rev.01: Length of Tube 20.084 inches – QTY: 8
- PF-444-161-25_Rev.01: Length of Tube 17.525 inches – QTY: 7
Quote is for product only; no on-site services permitted.
Source selection will be based on Lowest Price and Technically Acceptable Method (LPTA).
Technical evaluation criteria are as follows:
- Material: 316L seamless stainless steel, redrawn from tube produced to ASTM A269 OR 347/316L welded tubes shall be made from strip conformed to ASTM A240/A240M, with surface finish per ASTM A480/A480M, Finish 2B or better.
- Final product to have outside tube diameter shall be 1.875″ +0.000″/−0.007″, and wall thickness shall be 0.012″ ±0.001″. (Drawing PF-444-161-25)
- Overall cut-tube length deviation shall be within ±0.005″ from the nominal specified value.
- Tubes shall be straight to a maximum deviation of 0.001″ per 1.0″ of tube length.
- (Applicable to tubing made of a flat strip only) The weld bead shall be a butt joint fusion TIG weld without the use of filler metal. During welding, an inert gas inside purge shall be used along with an inert gas trailing shield on the outside. Tolerance on weld bead projection after planishing shall not exceed 0.002″.
- Tubing shall be cut to final length using a method that does not deform or collapse the tube wall, and all resulting sharp edges shall be immediately deburred, producing a maximum radius of 0.005″. (Refer to SC-700-866-49)
- No silicon or sulfur-based cutting fluids shall be used as machining lubricants. Cutting fluids must be approved, as specified in the latest revision of SC-700-866-47.
- Surface finish of the final product shall not exceed 16 μin Ra (0.40 μm Ra) on the tube inner surface and shall not exceed 63 μin Ra (1.6 μm Ra) on the tube outer surfaces.
- Electropolished per ASTM B912 if mechanical polishing was used to achieve required surface finish.
- Passivated per ASTM A967 (corrosion resistance).
- No operation causing contaminants to be embedded into vacuum surfaces shall be permitted. Grinding with resin-bonded wheels, emery cloth, crocus cloth, or similar abrasives on vacuum surfaces is prohibited.
- Cleaning of vacuum surfaces at all stages shall use only approved solvents and methods; chlorinated, brominated, and sulfur-based solvents are prohibited.
- Fabricated in full accordance with INJ-98 Rev. 6, with quality records and inspections outlined.
Please provide a price and lead time quotation by COB 7/3/2026.
Please be advised that the requirement was also posted on SAM.gov.
Send quote to contact@example.gov.
Is there any room for additional discount such as for Academic, ICPT, GSA, or Government Institutions?
If possible, please provide a link to your webpage for published price list to substantiate for the prices quoted.
- Buy American Act Certification (BAA) applies to items that have a unit price that is over $15,000.
- Representations & Certifications Rider is required. Once completed the Reps and Certs is valid for one year until renewal. If you have already completed one within the year please disregard. Otherwise, please complete and return.
- Please include in your proposals the Harmonized Tariff Schedule (HTS Code) & ECCN if applicable.
- All subcontractors are required to register in the System for Award Management (www.sam.gov).
- The resulting purchase order will be issued on a fixed price basis. SLAC National Accelerator Laboratory Terms and Conditions for Fixed Price Commercial Supplies and Services (Rev. August 2023) will be made a part of the resulting order.
- Payment Terms will be NET-30 (SLAC is unable to do advance payments and or Prepayments).
- Freight terms will be FOB Destination Prepaid and Add
- Foreign Vendors Shipments will be made CIP SLAC, Menlo Park, and Duty Unpaid.
You are requested to mark and identify proprietary/confidential information provided in response to the solicitation.
Contact me directly with any questions.
Kind regards,
Marissa Tanomrat
Procurement Commodities Team
SLAC National Accelerator Laboratory
2575 Sand Hill Road
Menlo Park, CA 94025
Email: contact@example.gov
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