The TE Connectivity / AMP Brand part 521781-1 is a 250 HSG. PL MKIII REC. 6.81mm 4P NAT connector. This connector is designed to provide a reliable and secure connection for various applications. It features a 4-pin configuration and a natural color that blends seamlessly with the surrounding environment. With a durable construction and a compact design, this connector is built to withstand demanding conditions while providing excellent performance. Upgrade your connectivity solution with the TE Connectivity / AMP Brand part 521781-1.