Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XLI 2U found under Indicator Synchronization by Symmetricom Inc. The National Stock Number assigned to this part is 6110015330382, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XLI 2U.