Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 611166 found under Bolt Externally Relieved Body by Horst Engineering And Manufacturing. The National Stock Number assigned to this part is 5306001964551, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 611166.