Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number OP-4T1 AC ST13 found under Multiplexer Light Signal by Rad Data Communications Inc. The National Stock Number assigned to this part is 6030014866324, 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 OP-4T1 AC ST13.