Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 107977H1 found under Brake Shoe Assy Out by Navistar Intl Corp. The National Stock Number assigned to this part is 2520003302248, 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 107977H1.