Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QO442L225 found under Circuit Breaker Box by Schneider Electric Usa Inc. The National Stock Number assigned to this part is 5925015457811, 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 QO442L225.