Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X8104-57 found under Connector Receptacl by Cooper Crouse Hinds Llc. The National Stock Number assigned to this part is 5935004586258, 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 X8104-57.