5810-01-721-8219 (822-2506-012)
5810-01-721-8219 is equivalent to manufacture part number 822-2506-012. It is a communications security module and is classified under Federal Supply Class 5810 (5810 - Communications Security Equipment), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5810 - Communications Security Equipment and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.