Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RWR74S2R21FR found under Resistor Fixed Wire by Milspec Services Pty Limited. The National Stock Number assigned to this part is 5905011651697, 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 RWR74S2R21FR.