Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XBG310203-X ITEM 5 found under Circuit Breaker by Abb Inc. The National Stock Number assigned to this part is 5925014390167, 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 XBG310203-X ITEM 5.