Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FCB0037993 A found under Connectorplugelectrical by Progeny Systems Corporation. The National Stock Number assigned to this part is 5935016990574, 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 FCB0037993 A.