Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8643-68001 found under Transformer Power by Chromalox Corp. The National Stock Number assigned to this part is 5950012108849, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 8643-68001.