Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 304790C1 found under Bolt Brake Spider by Navistar Intl Corp. The National Stock Number assigned to this part is 5306000515387, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 304790C1.