Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0621 3990 found under Connector Body Plug by Deutz Corporation. The National Stock Number assigned to this part is 5935121753242, 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 0621 3990.