5850-01-569-4488 (1640-00001)
5850-01-569-4488 is equivalent to manufacture part number 1640-00001. It is a light lens and is classified under Federal Supply Class 5850 (5850 - Visible and Invisible Light Communication Equipment), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5850 - Visible and Invisible Light Communication Equipment and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.