Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SAE-123 found under Transformer Audio F by Magnetika Inc. The National Stock Number assigned to this part is 5950011800106, 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 SAE-123.