Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1E620 found under Transformer Pulse by Baltimore Tool Works Inc. The National Stock Number assigned to this part is 5950007196446, 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 1E620.