Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WH7X72 found under Pulley Groove by General Electric Co. The National Stock Number assigned to this part is 3020011751435, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WH7X72.