Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 103B found under Tape Bookbinding by Shop Vac Corporation. The National Stock Number assigned to this part is 8315002403515, and the Federal Supply Class is 8315 Notions And Apparel Findings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 103B.