6635-00-234-5813 (7-10-1258)
6635-00-234-5813 is equivalent to manufacture part number 7-10-1258. It is a extensometer and is classified under Federal Supply Class 6635 (6635 - Physical Properties Testing Equipment), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6635 - Physical Properties Testing Equipment and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.