6620-01-189-8214 (215SB166P1)
6620-01-189-8214 is equivalent to manufacture part number 166A. It is a flow control thermostat and is classified under Federal Supply Class 6620 (6620 - Engine Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6620 - Engine Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.