The Naval Air Warfare Center Weapons Division in China Lake, CA intends to sole source the procurement of specific proprietary Differential Scanning Calorimeter replacement parts and related labor to TA Instruments-Waters LLC. 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.