Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 763 3 4 IN. ORAN found under Tape Embossing by 3M Company. The National Stock Number assigned to this part is 7510012073952, 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 763 3 4 IN. ORAN.