6605-01-140-3326 (023813)
6605-01-140-3326 is equivalent to manufacture part number 023813. It is a lens group 2 and is classified under Federal Supply Class 6605 (6605 - Navigational Instruments), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6605 - Navigational Instruments and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.