Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5743 found under Connector Receptacl by L 3 Communications Essco Inc. The National Stock Number assigned to this part is 5935015080819, 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 5743.