6760-01-099-9169 (ALK-1)
6760-01-099-9169 is equivalent to manufacture part number ALK-1. It is a lensextension tube and is classified under Federal Supply Class 6760 (6760 - Photographic Accessories), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6760 - Photographic Accessories and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.