Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C81-38-35 found under Needle Float Valve by Zenith Fuel Systems Inc. The National Stock Number assigned to this part is 2910003544964, 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 C81-38-35.