SEE ATTACHMENTS FOR MORE DETAILS THIS SOURCES SOUGHT IS NOT A NOTICE OF SOLICITATION ISSUANCE. This is a special notice that includes a REQUEST FOR INFORMATION (RFI) issued solely for information and planning purposes; it does not constitute a Request for Quote (RFQ) or Proposal (RFP) or promise to issue a solicitation in the future. This notice does not commit the Government contractually for any services or supplies whatsoever. Responders are advised that the United States Government will not pay for any information or administrative costs incurred in the response to this RFI. Not responding to this RFI does not preclude participation in a future solicitation if one is issued. If a solicitation is released, it may be posted to the System Award Management (SAM) website, but it is not guaranteed, and it is the responsibility of the potential offerors to monitor the Government website for a potential solicitation and additional information pertaining to this requirement. The proposed project consists of the following: The contractor shall furnish the necessary personnel, material, equipment, services, and facilities to supply LHe in 100, and 250-liter contractor-owned dewars, on an as-needed basis, in accordance with the statement of work (SOW) for the National Institute of Standards and Technology (NIST), Boulder, Colorado. This requirement is assigned a NAICS code of 325120 Industrial Gas Manufacturing with the Small Business Administration (SBA) size standard of 1,200 employees. Submit an Interest and Capability (to include cut sheets, drawings, previous installation examples, etc.) shall be limited to 20 pages (Times New Roman, 12 point font, 8-1/2 x 11. Cut sheets and drawings are acceptable as 11 x 17) and submitted via e-mail to the contract specialist listed in this notice. All correspondence sent via e-mail shall contain a subject line that reads " NB192020-26-02035 Liquid Helium Delivery Project Sources Sought". If this subject line is not included, the e-mail may not get through e-mail filters. Filters are designed to delete emails without a subject or with a suspicious subject or attachment. Attachments with files ending in .zip or .exe are not allowable and will be deleted. Ensure only .pdf, .doc, .docx, .xsls, or .xls documents are attached to your e-mail. All other attachments may be deleted. All responses must reach the point of contact no later than 2:00 PM MT on July 2, 2026 and must include the following information: company name; address; phone number, fax number, e-mail address, and business size status for the applicable NAICS. Responses shall not include classified data. Proprietary information, if any, shall be kept to a minimum and MUST BE CLEARLY MARKED. To aid the Government, SEGREGATE proprietary information. Please be advised that all submissions become Government property and will not be returned. Questions regarding this notice shall be submitted via e-mail to the point of contact listed in this notice. Questions sha…