The Department of Defense, through the Fleet Logistics Center Norfolk, is seeking qualified sources for the procurement of 13 Magneto-Optical Trap (MOT) beam-expanding collimators for the United States Naval Observatory. The collimators must meet specific technical specifications, including compatibility with defined PM fiber, Gaussian intensity output, and construction from non-magnetic materials, all aimed at enhancing the precision of timekeeping for the Department of Defense. This procurement is critical as the U.S. Naval Observatory is responsible for maintaining official time using advanced atomic clock technology, and the required delivery timeframe is six months from the award date. Interested parties should submit capability statements and estimates to Ian Tupaz at ian.j.tupaz.civ@us.navy.mil by 8:00 AM EST on April 15, 2025, and must include essential company information and registration status.