Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9S8070 found under Connector Exhaust Pipe by Caterpillar Inc. The National Stock Number assigned to this part is 2990004276897, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9S8070.