Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RC42GF123J found under Resistor Fixed Composition by A R F Products Inc. The National Stock Number assigned to this part is 5905001500748, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RC42GF123J.