Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9J3139 found under Shank by Caterpillar Inc. The National Stock Number assigned to this part is 2590011235931, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9J3139.