Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F4821PC25 found under Gear Spur by Ingersoll Rand Corp. The National Stock Number assigned to this part is 3020002746424, 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 F4821PC25.