Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5519017 found under Chain Assembly Single Leg by Tec Design And Manufacturing Inc. The National Stock Number assigned to this part is 4010012870043, and the Federal Supply Class is 4010 Chain And Wire Rope. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5519017.