SLAC National Accelerator Laboratory, operated by Stanford University for the Department of Energy, is seeking quotations for the fabrication of aperture components with specific crystal orientations and surface finish requirements. The work involves providing six items with a required surface finish of 1nm RMS and clear apertures as defined in the drawings, with no on-site services permitted. Performance of services is not specified as on-site, but delivery terms are FOB Destination Prepaid to Menlo Park, CA. The submission deadline for price and lead-time quotations is COB May 14, 2026. No budget amount is specified, and the award will be based on the Lowest Price Technically Acceptable method.