Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TC3005R-03 ST-L1 ST-12R found under Converter Fiber Optic Single Mod by Tc Communications Inc. The National Stock Number assigned to this part is 6030016227779, 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 TC3005R-03 ST-L1 ST-12R.