Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 493985C2 found under Spacer Pinion Beari by Navistar Intl Corp. The National Stock Number assigned to this part is 2520006300148, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 493985C2.