Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20823 2 found under Monitor Under Frequ by Electric Regulator Corp. The National Stock Number assigned to this part is 6125000218064, and the Federal Supply Class is 6125 Converters Electrical Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20823 2.