Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12-02012 found under Caliperslide by Irwin International Inc. The National Stock Number assigned to this part is 5210016783565, and the Federal Supply Class is 5210 Measuring Tools Craftsmens. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12-02012.