Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WBC1-5-A-3S4 found under by Ernst Contracting. The National Stock Number assigned to this part is 5950011595785, 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 WBC1-5-A-3S4.