This Parker brass plug is a pipe fitting with a hexagonal head and male National Piper Taper (NPT) threads for closing and terminating the end of a pipe. It inserts into female pipe and connects with NPT threads for creating a tighter seal than straight threads. It is made from brass, which is more economical, machinable, and offers greater corrosion resistance than steel. The plug has a hexagonal head for increased leverage during installation and disassembly with a wrench, and is made of brass, which has excellent thermal conductivity and greater corrosion resistance than stainless steel. This fitting meets standards ANSI B31.1 and B1.20.1 for quality assurance. Depending on the application, plugs are available in different lengths, sizes, head shapes, pressure ratings, and come with male or female ends. Parker Hannifin is a leading global manufacturer of motion and control technologies. Founded in 1918 as the Parker Appliance Company in Cleveland, OH, when Arthur L. Parker developed a pneumatic braking system for trucks and buses, Parker Hannifin now provides precision-engineered products for many industries including aerospace, commercial, medical, mobile, and industrial manufacturing. With locations on every continent, and in 48 countries, Parker Hannifin is a multi-billion dollar publicly traded company that offers a variety of solutions for flow control, filtration, and hydraulics, among many others.