Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 340 8500027 found under Arm Assembly Door Actuator by Tracor Flight Systems Inc. The National Stock Number assigned to this part is 1560000260697, 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 340 8500027.