Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CP4450-4 found under Riveting Machine Impact Type Pne by Usatco. The National Stock Number assigned to this part is 3448015936862, and the Federal Supply Class is 3448 Riveting Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CP4450-4.