Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ET20-103-T found under Lamp Unitvehicular by Evolution Trailer Technologies Inc. The National Stock Number assigned to this part is 6220016872290, and the Federal Supply Class is 6220 Electric Vehicular Lights And Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ET20-103-T.