Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FTTT-4-0-3 found under Trimming Tool Fastener Retainer by Fatigue Technology International. The National Stock Number assigned to this part is 5110015925695, 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 FTTT-4-0-3.