Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DR3010B-C found under Transmitter Light Signal by International Fiber Systems Inc. The National Stock Number assigned to this part is 6030016159689, 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 DR3010B-C.