Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ETL-C406-1HM found under by Acr Electronics Inc. The National Stock Number assigned to this part is 5826015733515, and the Federal Supply Class is 5826 Radio Navigation Equipment Airborne. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ETL-C406-1HM.