Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E9A109-0040 found under Gearshaft Bevel by Optex Systems Inc. The National Stock Number assigned to this part is 3040014338556, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like E9A109-0040.