Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM-D-448946 found under Coil Assembly Radio by Automatic Coil Corp. The National Stock Number assigned to this part is 5950010983564, 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 SM-D-448946.