Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5R7-271 found under Resistor Fixed Comp by A R F Products Inc. The National Stock Number assigned to this part is 5905007278942, 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 5R7-271.