6620-00-363-8347 (MIL-G-15353)
6620-00-363-8347 is equivalent to manufacture part number 3307840. It is a cylinder compression tester 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.