Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L1003B found under Inst Extractor Spec by Unitrack Industries Inc. The National Stock Number assigned to this part is 5120013328755, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like L1003B.