The 112603 is a straight crimp jack attachment designed for flexible cable applications. It features a nickel finish with Teflon insulation and is rated for 50 ohm impedance, making it suitable for RF and microwave signal transmission. The connector uses crimp tool type D for assembly and is part of cable group 07C. This jack is commonly used in RF/microwave systems, test equipment, and communication applications where reliable impedance matching and signal integrity are required.