Ultra Pressure Components Series 5406C Female HP Cap Adapters are designed to securely cover high-pressure connections, providing a tight seal with a 60-degree coned and threaded connection. These adapters are built to handle extreme pressures up to 60,000 psi (4136 bar) and are made from durable cold-worked 316 stainless steel for superior strength and longevity. Ideal for protecting and maintaining high-pressure systems, these cap adapters ensure reliability and are available in special materials upon request.