The Naval Air Warfare Center Weapons Division in China Lake, CA intends to sole source the procurement of direct replacement parts for a Micropore BET Physisorption Analyzer to Anton Paar USA, Inc. of Torrance, CA. Any firm believing it can fulfill this requirement may submit a written capability statement for agency consideration within 5 days of the notice's publication. All responsible sources must have an active registration in the System for Award Management (SAM), which now requires a notarized letter for registration or renewal.