Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12259648 found under Circuit Breaker Box by Sterling Mfg And Supply Inc. The National Stock Number assigned to this part is 5925010723167, 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 12259648.