Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B2547-1 found under Coil Assembly Electrical by Celco. The National Stock Number assigned to this part is 5950004918894, 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 B2547-1.