Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GSM9-B5B5B5B5 found under Power Supply by Gyro Systems Co Inc. The National Stock Number assigned to this part is 6130014626859, 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 GSM9-B5B5B5B5.