Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S246-B52 found under Resistor Thermal by Avi Systems Inc. The National Stock Number assigned to this part is 5905011678648, 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 S246-B52.