Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 351-55880 found under Injector Assembly Fuel by United Aircraft Corp. The National Stock Number assigned to this part is 2910013240482, 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 351-55880.