Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U55081 031 0001 found under Nutplainhexagon by Fabory Usa Ltd. The National Stock Number assigned to this part is 5310016909942, 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 U55081 031 0001.