Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4203840 found under Coverelectrical Connector by Flir Detection Inc. The National Stock Number assigned to this part is 5935016904202, 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 4203840.