Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GT121-21S-CD found under Connectorplugelectrical by Lg Electronics U S A Inc. The National Stock Number assigned to this part is 5935016761910, and the Federal Supply Class is 5935 Connectors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GT121-21S-CD.