Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 89-171 found under Punch Fastener Setting by Gsg Fasteners Llc. The National Stock Number assigned to this part is 5110000402454, and the Federal Supply Class is 5110 Hand Tools Edged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 89-171.