Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CP4447-RUTAB found under Hammer Pneumatic Portable by U S Air Tool Co Inc. The National Stock Number assigned to this part is 5130002427224, and the Federal Supply Class is 5130 Hand Tools Power Driven. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CP4447-RUTAB.