Thank you for taking an interest in part number 21018113-104, that of which is a Bae Systems Information And Electronic Systems Integration I Dba Bae Systems Nor product listed with description "Semiconductor Device Assembly". In addition to being listed with part number 21018113-104, this particular offering also has the NSN 5961010838509, further allowing you to ensure that you only procure the exact aerospace parts you require for your operations. If you would like to begin procurement for your desired NSN parts or simply want to know more about this listing, be sure to fill out and submit the RFQ form provided below with as much information as possible.