Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XJL433400MT0 found under Circuit Breaker by Challenger Electrical Equipment Corp. The National Stock Number assigned to this part is 5925012838123, 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 XJL433400MT0.