Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CB285F-120 found under Circuit Breaker by Cooper Bussmann Corp. The National Stock Number assigned to this part is 5925016586422, 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 CB285F-120.