Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 017-000210R00 found under Countersink by Insitu Inc. The National Stock Number assigned to this part is 5133015950491, 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 017-000210R00.