Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2-26121-19 found under Rib Airfoil by Triumph Structures East Texas. The National Stock Number assigned to this part is 1560004584711, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2-26121-19.