6625-00-238-1252 (666)
6625-00-238-1252 is equivalent to manufacture part number 666. It is a electron tube test set and is classified under Federal Supply Class 6625 (6625 - Electrical and Electronic Test Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6625 - Electrical and Electronic Test Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.