Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1003255-43 found under Circuit Breaker by Raytheon Technical Services Company. The National Stock Number assigned to this part is 5925004501255, 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 1003255-43.