Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FTTS-797-1OS-1 found under Repair Kit Aircraft Maintenance by Fatigue Technology International. The National Stock Number assigned to this part is 4920015637349, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FTTS-797-1OS-1.