Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Q06-12RB found under Circuit Breaker Box by Square D Co. The National Stock Number assigned to this part is 5925005130801, 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 Q06-12RB.