DHST041 NST fire hose cap

An NST fire hose cap is a type of cover used for fire hose connections that adhere to the NST (National Standard Thread) specification. It is primarily used to protect the hose connection from dust, debris, and moisture when not in use, ensuring a clean and leak - free connection when the hose is deployed.
NST fire hose caps come in various materials, including plastic and brass. Plastic caps are often lightweight and corrosion - resistant, while brass caps offer higher strength and durability. They also come in different sizes to match the corresponding NST thread sizes, such as 1.5 - inch, 2 - inch, and 2.5 - inch. Some caps are equipped with chains to prevent loss when the cap is removed from the hose connection.