Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2N3854 found under Barrel Fuel Primer Pump by Caterpillar Inc. The National Stock Number assigned to this part is 2910012166843, and the Federal Supply Class is 2910 Engine Fuel System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2N3854.