The 202102-11 is an N male connector cap with chain featuring a large 19.71 mm loop design manufactured by Amphenol RF. The cap assembly consists of a brass shell with nickel finish, a silicon rubber gasket, a nickel-plated brass rivet, and a brass chain with nickel finish, providing corrosion resistance and durability. Key dimensional specifications include an outer diameter of 25.40 mm, a reference length of 100 mm, and a thread specification of 5/8-24 UNEF-2B for secure connection to N-type connectors. This connector cap is commonly used in RF and microwave systems to protect N-type male connectors from environmental contamination and accidental damage during storage and transport, ensuring signal integrity and extending connector lifespan.