6630-01-266-4407 (87-10-1-93)
6630-01-266-4407 is equivalent to manufacture part number 13-300-70. It is a ph tester and is classified under Federal Supply Class 6630 (6630 - Chemical Analysis Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6630 - Chemical Analysis Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.