Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13611 found under Nut Aircraft Equip by Tennant Company. The National Stock Number assigned to this part is 5310015195211, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 13611.