5855-00-132-0949 (SC-D-340654)
5855-00-132-0949 is equivalent to manufacture part number 173-340654. It is a optical element retaining ring 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.