Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F480-28231 ITEM 1 found under Flange Coupling by Tb Woodss Corporation. The National Stock Number assigned to this part is 3010011996399, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like F480-28231 ITEM 1.