391-8531-016 is an interconnect connector assembly from ITT Cannon's AP/APD/APK series, designed for transportation applications. The product is part of the Vector/APD/Harness/Others product line and carries the internal part designation FSK APC-R6B25SW-002. This connector assembly is engineered to meet stringent reliability and durability requirements for automotive and transportation systems. The product complies with RoHS directives regarding material restrictions on lead, cadmium, hexavalent chromium, mercury, PBB, and PBDE according to directive 2011/65/EU (compliance status requires factory consultation). This interconnect solution is suitable for harsh transportation environments where robust electrical connections and long service life are essential.