Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 733-PF-U-8 4150(14-140F found under Resistor Thermal by Weed Instrument Company Inc. The National Stock Number assigned to this part is 5905014122334, 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 733-PF-U-8 4150(14-140F.