Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y4CT3A-5ALC found under Tachometer Electric Nonself Gene by Westberg Mfg Inc. The National Stock Number assigned to this part is 6680013887731, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like Y4CT3A-5ALC.