The U.S. Army Research Laboratory requires one capacitance manometer calibration tool with specific technical characteristics, including NIST-traceable calibration, compatibility with MKS-type units, and a portable design. Performance of services will be at Aberdeen Proving Ground, MD, with delivery required by August 2, 2026. The government intends to award this as a sole-source procurement to MKS, Inc., but will consider all proposals received by the closing date. No budget amount is specified in the description. This opportunity is for a single commercial item under a combined synopsis/solicitation.