Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TVOC-2-E1 found under Extension Optical I by Abb Control Inc. The National Stock Number assigned to this part is 6145016430438, and the Federal Supply Class is 6145 Wire And Cable Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like TVOC-2-E1.