Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 123-27330 found under Switch Engine Temperature Automo by Ese Inc. The National Stock Number assigned to this part is 2990015910632, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 123-27330.