Seal Fast Brass Reducer Adapter 1913060 2 1/2 Inch FNST x 2 Inch MNPT Threaded Connection (Fire Hydrant to Standard Pipe Hose Plumbing Fitting)

Professional Heavy-Duty Fire Hydrant Brass FNST to Male NPT Thread Reducer Adapter

The Seal Fast 1913060 is an industrial-grade brass reducer adapter engineered to transition specialized 2.5-inch Female National Standard Thread (FNST) fire hydrant outlets directly to standard 2-inch Male National Pipe Taper (MNPT) lines. Forged from high-tensile, corrosion-resistant brass metallurgy, this structural plumbing adapter ensures a leak-free mechanical bridge under high-pressure water streams and extreme field vibration. Optimized for municipal water bypass, construction site water supply, emergency response pumping setups, and agricultural irrigation networks, this robust fitting eliminates sizing mismatches safely without structural flow restrictions.

Best Used For:

• Fire Hydrant Thread Adaptation: Connecting standard municipal fire hydrant outlets to standard industrial discharge pipes or commercial hoses.
• Emergency Municipal Bypass: Linking emergency water supply routing manifolds to high-volume utility pump networks.
• Agricultural Pumping Infrastructure: Adapting regional fire protection water sources to supply fields and localized agricultural irrigation grids.

Key Performance & Safety Features

• Structural Brass Metallurgy: Heavy-duty forged alloy handles intense mechanical impact, resists jobsite scaling, and remains fully sparkproof for active site safety.
• FNST to MNPT Transition Geometry: Precision machined straight female fire threads on one end merge into a tapered male pipe profile for immediate system integration.
• High-Pressure Leak Defense: Machined interfaces establish a tight mechanical fit that completely prevents line blowouts and high-velocity water bypass.
• Atmospheric Oxidation Shielding: Solid brass compound naturally resists harsh weather elements, groundwater mineralization, and prolonged outdoor storage degradation.
• Deep Hex Lug Integration: Raised external tooling lugs provide a secure surface for hydrant wrenches to apply maximum compression torque safely.

What's Included

• (1) Seal Fast Brass FNST x MNPT Reducer Adapter Fitting (2.5" x 2")

Technical Specifications

Pro-Tip: Before threading the female 2.5-inch FNST swivel onto a fire hydrant nose, inspect the internal rubber swivel gasket for dynamic sand accumulation or cuts. Ensuring a completely clear, clean sealing seat permits drop-free operations under severe city main pressure loads and keeps your pump inlet line primed.