Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 41TD20 found under Resistor Thermal by Mil Craft Mfg Inc. The National Stock Number assigned to this part is 5905010400594, 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 41TD20.