Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RWR74S39R0FM found under Resistor Fixed Wire by Struthers Dunn Inc. The National Stock Number assigned to this part is 5905013141389, 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 RWR74S39R0FM.