Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H940040-001B found under Transformer Power by Raytheon Company. The National Stock Number assigned to this part is 5950012442932, 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 H940040-001B.