Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20100139 found under Circuit Breaker by Eberspaecher Climate Controlsystems. The National Stock Number assigned to this part is 5925121971347, and the Federal Supply Class is 5925 Circuit Breakers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20100139.