Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 801501 found under Bit Tool Boring Bar by Curtis Straus Llc. The National Stock Number assigned to this part is 5133001437997, and the Federal Supply Class is 5133 Drill Bits Counterbores And Countersinks Hand And Machine. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 801501.