Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VTR251-2-1056 found under Nut Eye Tool by Brown Boveri And Cie Ag. The National Stock Number assigned to this part is 5120013605234, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like VTR251-2-1056.