Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 729SP3 found under Resistor Fixed Comp by Sandvik Wire And Heating Technology. The National Stock Number assigned to this part is 5905006172651, 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 729SP3.