Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12K31ITEM4C found under Interlock Electrica by General Electric Inc. The National Stock Number assigned to this part is 6110003990391, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12K31ITEM4C.