Enriched B4C Shielding Discs

NASA's National Aeronautics and Space Administration Shared Services Center has issued a Special Notice for the procurement of Enriched B4C Shielding Discs. The agency intends to award a sole source contract to MILLENNITEK, LLC, a company based in Knoxville, Tennessee, under the authority of FAR 13.106-1(b)(1)(i), as it has been determined to be the sole provider of this specialized product. The National Space Science Center (NSSC) will manage this procurement, with performance taking place at NASA's Glenn Research Center (GRC). The Government plans to acquire commercial items and services under the provisions and procedures of FAR Parts 12 and 13. This Special Notice was posted on December 16, 2025, and falls under NAICS Code 332999 (All Other Miscellaneous Fabricated Metal Product Manufacturing).

The procurement objective is to obtain four boron-enriched boron carbide discs meeting specific technical specifications, including a 3-inch diameter with strict tolerances, thickness between 0.008 and 0.015 inches, and a minimum density of 2.25 g/cc with greater than 96 atomic percent 10-boron enrichment. Interested organizations must submit written capabilities and qualifications by December 19, 2025, at 12 p.m. Central Standard Time, with the Government retaining sole discretion to determine whether to conduct the procurement competitively based on responses received. While MILLENNITEK, LLC is the identified sole source, this Special Notice invites other qualified contractors to demonstrate their ability to perform the work, and the Government will evaluate submissions only for the purpose of deciding whether to pursue full and open competition. Delivery is required within six months of purchase award, and contractors must comply with mandatory artificial intelligence disclosure requirements as outlined in OMB memo M-25-22. Oral communications are not acceptable, and interested parties should direct inquiries to the NASA Center Ombudsman.