Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 554020-197 found under Resistor Fixed Comp by Stromberg Carlson Corp. The National Stock Number assigned to this part is 5905008354679, 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 554020-197.