Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LR 1003 TX found under Transistor by Power Tech Inc. The National Stock Number assigned to this part is 5961013650678, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LR 1003 TX.