Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4039471-3 found under Nut Plain Round by Precision Machining Inc. The National Stock Number assigned to this part is 5310012668515, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4039471-3.