Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 21121124-001 found under Connector Assembly by Acterna Llc. The National Stock Number assigned to this part is 5935016427114, 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 21121124-001.