This Anderson Metals 38300 nipple is a 2-1/2" long lead free red brass pipefitting with 1/8" male NPT threads. The nipple fitting is a short length of pipe with threaded ends for connecting two threaded pipes. It has male National Pipe Taper (NPT) threads for connecting to female threaded pipes, creating a tighter seal than straight threads. This fitting is made from red brass for resistance to corrosion, ductility at high temperatures, and low magnetic permeability. The fitting has an operating temperature range of -53 to +121 degrees C. This fitting meets American Society for Testing and Materials (ASTM) B584 and American Society of Mechanical Engineers (ASME)/American National Standards Institute (ANSI) B16 specifications for quality assurance.Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).Anderson Metals manufactures brass fittings, valves, and pipe nipples. The company, founded in 1951, is headquartered in Kansas City, MO.