Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FLUKE-51-2 50HZ found under Thermometer Self Indicating Digi by Fluke Electronics Corp. The National Stock Number assigned to this part is 6685012927873, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FLUKE-51-2 50HZ.