Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 870SS0055 found under Circuit Breaker by Oto Melara Spa. The National Stock Number assigned to this part is 5925002247425, 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 870SS0055.