Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XT35099PC15 found under Gear Helical by Fairchild Corp. The National Stock Number assigned to this part is 3020002699634, 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 XT35099PC15.