MS90376-16YB is a black polyethylene plug manufactured by Caplugs. It is designed to close off and protect many kinds of threaded openings and fittings. The plug is resistant to chemicals, sunlight, and water, and has a maximum temperature range of between -30°F to 300°F. It has internal and external PTFE/Nylon pull tab for easy installation and removal, and meets SAE AS90376 standards. It is suitable for use in applications such as aerospace, automotive, healthcare, and industrial.