4920-00-191-8363 (8926-G1)
4920-00-191-8363 is equivalent to manufacture part number 290. It is a portable boresight fixture and is classified under Federal Supply Class 4920 (4920 - Aircraft Maintenance and Repair Equipment), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4920 - Aircraft Maintenance and Repair Equipment and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.