Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SB4-BM-4SX0 found under Connector Receptacl by A B Electronics Products Group Plc. The National Stock Number assigned to this part is 5935013336114, 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 SB4-BM-4SX0.