Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L2100021-031 found under Fairing Aircraft by Kirkhill Ta Co. The National Stock Number assigned to this part is 1560014247479, 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 L2100021-031.