Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BEL-203 found under Shielding Bead Elec by Concepts Eti Inc. The National Stock Number assigned to this part is 5950016296227, 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 BEL-203.