Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3121604 found under Fastener Actuator by Ge Aviation Systems Llc. The National Stock Number assigned to this part is 1680004773315, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3121604.