Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4841-18-140 found under Lead Set Ignition Engine by Toyo Kogyo Co Ltd. The National Stock Number assigned to this part is 2920011654820, and the Federal Supply Class is 2920 Engine Electrical System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4841-18-140.