The Lansdale Swivel Gasket Kit for 2½-inch NST-thread fire protection swivels is designed to restore smooth, reliable operation on fire department connections using standard NST (National Standard Thread) female swivels. NST, also known as NH fire hose thread, is the most widely used fire service thread in the United States, making this kit ideal for rebuilding common 2½-inch FDC swivels found on standpipes and exterior fire department connections.
Each kit includes a high-quality swivel gasket, precision ball bearings, and a set screw engineered to fit 2½-inch NST swivel assemblies. The gasket helps provide a tight, leak-resistant seal during system tests and emergency flows, while the replacement bearings restore smooth swivel rotation when firefighters connect and disconnect hose lines under pressure. The set screw secures the internal bearing race and components, helping to prevent binding, loosening, or uneven wear over time.
Purpose-built for dedicated fire protection service, the Lansdale 2½-inch NST Swivel Gasket Kit is an excellent maintenance solution for fire sprinkler contractors, inspectors, and facility maintenance teams responsible for keeping standard NST fire department connections in service-ready condition. By restoring both watertight sealing and easy swivel movement, this kit supports inspection readiness, helps maintain code compliance, and extends the service life of critical FDC hardware across a wide range of NST-equipped buildings and systems.
