Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12712-5005-02 found under Marker Identification by Optics 1 Inc. The National Stock Number assigned to this part is 7690016719592, 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 12712-5005-02.