The 121583-0010 is a 4-way jam nut receptacle connector designated APD-3CP-K2 with green color coding (RAL 6029) conforming to ISO 15170 standards. This high-power connector features a robust design with PBT GF housing, HNBR sealing parts, and copper alloy contacts with silver or gold plating, ensuring reliable performance in demanding environments. The connector operates across a temperature range of -40°C to +125°C with humidity resistance up to 95% relative humidity, IP 67 sealing rating, and compatibility with brake fluid, ATF, and fuel. It includes a jam nut suitable for wall thicknesses of 1 to 4 mm and is designed for applications requiring mechanical keying and visual color identification in industrial, automotive, and aerospace systems.