Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 644-1-6155 found under Pump Fuel by Foremost Industries Lp By Itsgeneral. The National Stock Number assigned to this part is 2910003634168, 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 644-1-6155.