Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 140M D8N B63 found under Circuit Breaker by Allen Bradley Co. The National Stock Number assigned to this part is 5925015841330, 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 140M D8N B63.