2040-01-021-6164 (936H038549)
2040-01-021-6164 is equivalent to manufacture part number 936H038549. It is a periscope adapter and is classified under Federal Supply Class 2040 (2040 - Marine Hardware and Hull Items), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 2040 - Marine Hardware and Hull Items and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.