Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40-1026-507 found under Panel Structural Ai by Dixie Air Parts Supply Inc. The National Stock Number assigned to this part is 1560007785394, 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 40-1026-507.