Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RW79U4020F found under Resistor Fixed Wire by Thales Training And Simulation Ltd. The National Stock Number assigned to this part is 5905011767331, 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 RW79U4020F.