Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GBM4X1 found under Battery by Getac Inc. The National Stock Number assigned to this part is 6130016889840, and the Federal Supply Class is 6130 Converters Electrical Non Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GBM4X1.