5855-01-561-5343 (AN/PAS-13E(V)3)
5855-01-561-5343 is equivalent to manufacture part number 6631000-3. It is a thermal sight and is classified under Federal Supply Class 5855 (5855 - Night Vision Equipment), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5855 - Night Vision Equipment and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.