1、Excellent Nickel Plated Brass Material: This 4 pin connector aviation socket is made of excellent nickel plated brass material, which is durable and reliable to ensure long time use. 2、M12 Interface: This 4 pin connector aviation socket utilizes an M12 interface, making it very easy to install and suitable for a variety of installation needs. 3、Built In Potting Type: This 4 pin connector aviation socket features a built in potting type, which makes it easy to connect electronic wires quickly and conveniently, and improves work efficiency. 4、Compact And Portable: This 4 pin connector aviation socket is small in size and light in weight, and the operation of installation and replacement is very easy. 5、Wide Application: This 4 pin connector aviation socket has a wide range of applications, and is mainly used in aviation, aerospace, electronics and other fields.