# SI Plane Mirrors

Canonical: https://abierto.us/opportunities/bsa468459

- Solicitation number: BSA468459
- Notice type: Presolicitation
- Status: Closed. Deadline was October 10, 2025 at 4:00 PM EDT
- Department: Department of Energy
- Contracting office: Brookhaven Natl Lab -Doe Contractor (899033)
- NAICS: 327215 Glass Product Manufacturing Made of Purchased Glass
- Product or service code: AG13 Energy R&D Services; Energy Supply; Experimental Development
- Place of performance: Upton, New York
- County: Suffolk County (FIPS 36103). https://abierto.us/counties/suffolk-county-ny-36103
- First posted: September 9, 2025
- Last posted: September 17, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/ff714d7dba0b44fe96b61c8e68993d41/view

## Description

The Offeror shall furnish all labor, services, materials, and equipment in strict accordance with the statement of work to fabricate and polich two SI Plane Mirrors to the following specifications.

**Dimensions:** 508 ±5mm -0.0mm x 38.1 ±0.2mm x 9 mm±0.1mm As-polished slope errors <=1 urad rms (1 mm to the length of the mirror) As-polished roughness <0.3nm rms. Tangential radius >25 km Sagittal radius >5km No coating. BSA 468459 Amendment 01 - The purpose of this amendment is to provide Questions and Answers (Q&A) and to close the Q&A session. The remainder of the solicitation remains unchanged. See Q&A attachment.

## Publications

- September 9, 2025: Presolicitation, due October 10, 2025 at 4:00 PM EDT. Notice 0d63dce4ed7940d5957d97c8569d1280. https://sam.gov/workspace/contract/opp/0d63dce4ed7940d5957d97c8569d1280/view
- September 17, 2025: Presolicitation, due October 10, 2025 at 4:00 PM EDT. Notice ff714d7dba0b44fe96b61c8e68993d41. https://sam.gov/workspace/contract/opp/ff714d7dba0b44fe96b61c8e68993d41/view

## Points of contact

- Mark Brock, mbrock@bnl.gov, 6313442713
- Jayce Blood, jblood@bnl.gov, 6313442627

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/bsa468459.