Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AV400R-4 found under Interface Unit Automatic Data Pr by Avocent Huntsville Corp. The National Stock Number assigned to this part is 7025015055277, and the Federal Supply Class is 7025 Adp Input Output And Storage Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AV400R-4.