Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B7A-12171C found under Contact Set Distributor by Navistar Intl Corp. The National Stock Number assigned to this part is 2920000739854, and the Federal Supply Class is 2920 Engine Electrical System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B7A-12171C.