Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FB30-70V found under Circuit Breaker by Westinghouse Electric Corp. The National Stock Number assigned to this part is 5925004225151, 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 FB30-70V.