Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 52007 found under Reactor by Espey Mfg And Electronics Corp. The National Stock Number assigned to this part is 5950004440572, 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 52007.