Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WBC3-R-4B1-Z-433003069131 found under by Ferroxcube Corp. The National Stock Number assigned to this part is 5950015823852, 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 WBC3-R-4B1-Z-433003069131.