Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HF22043 SIEMENS found under Oven Microwave by Federal Program Management Inc. The National Stock Number assigned to this part is 7310014658208, 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 HF22043 SIEMENS.