Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F170-A found under Mastershaft Assembly Riveter by Fastening Systems International. The National Stock Number assigned to this part is 5120014305347, 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 F170-A.