Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 139D635G02 found under Circuit Breaker Subassembly by Cutler Hammer. The National Stock Number assigned to this part is 5925014348570, 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 139D635G02.