Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3502B found under Codec Data Signal by Synoptics Communications Inc. The National Stock Number assigned to this part is 7025014210245, 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 3502B.