Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 41778 found under Coil And Lead Spark by Unison Industries Llc. The National Stock Number assigned to this part is 2925009532353, and the Federal Supply Class is 2925 Engine Electrical System Components Aircraft Prime Moving. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 41778.