Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 439A1107-2 found under Clamp Block by Aviall Airline Inc. The National Stock Number assigned to this part is 1560016547716, 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 439A1107-2.