Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QB400558-9 found under Connector Receptacl by Honeywell International Inc. The National Stock Number assigned to this part is 5935007024228, 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 QB400558-9.