Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AT-TS12F ST-15 found under Multiplexer Light Signal by Allied Telesis Inc. The National Stock Number assigned to this part is 6030014480116, and the Federal Supply Class is 6030 Fiber Optic Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AT-TS12F ST-15.