Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12-12212-2 found under Marker Identificati by Bae Systems Technology Solutions And Services Inc Dba Bae Systems Information And. The National Stock Number assigned to this part is 7690013763716, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12-12212-2.