Brass Dead Nut 1/4 Inch (Pack of 4) – Product Description
The Brass Dead Nut 1/4 Inch (Pack of 4) is a premium-quality sealing fitting designed to securely cap and seal 1/4-inch flare fittings, service ports, and pipe connections in air conditioning, refrigeration, gas, and plumbing systems. It is an essential HVAC spare part used to prevent refrigerant, gas, or water leakage from unused or disconnected service ports during installation, maintenance, repair, or transportation of equipment.
Manufactured from high-grade solid brass, these dead nuts are precision-machined to provide a perfect fit and a reliable leak-proof seal. The durable brass construction offers excellent resistance to corrosion, rust, oxidation, and wear, making the fittings suitable for long-term use in demanding residential, commercial, and industrial environments. Designed to withstand high operating pressures and varying temperatures, these dead nuts ensure dependable performance in refrigeration and HVAC applications.
The precision-cut internal threads ensure secure tightening on compatible 1/4-inch flare connections, minimizing refrigerant loss and protecting the system from pressure drops. In addition to sealing the connection, these dead nuts also protect service ports from dust, moisture, dirt, and other contaminants that can affect the performance and lifespan of air conditioning and refrigeration systems.
The compact and lightweight design makes installation and removal quick and effortless using standard HVAC service tools. Supplied as a pack of 4, these brass dead nuts are ideal for HVAC technicians, refrigeration engineers, plumbers, appliance repair professionals, and maintenance service centers that require reliable sealing accessories for routine servicing and repairs.
Key Features:
✔ 1/4-inch Brass Dead Nut – Pack of 4
✔ Manufactured from premium-quality solid brass
✔ Precision-machined threads for a secure and leak-proof fit
✔ High-pressure and high-temperature resistant construction
✔ Corrosion, rust, and wear-resistant finish
✔ Protects service ports from dust, dirt, and moisture
✔ Easy to install, remove, and reuse
✔ Durable, maintenance-free, and long service life
✔ Suitable for professional HVAC and refrigeration applications
Applications:
- Air Conditioner Service Valves
- Split AC Installation & Maintenance
- Refrigeration Systems
- HVAC Equipment
- Gas Line Connections
- Plumbing Systems
- Flare Fittings and Pipe Connections
- Commercial & Industrial Maintenance
- Replacement Spare Parts
Benefits:
- Prevents refrigerant, gas, and water leakage
- Maintains system pressure and operational efficiency
- Protects service ports from contamination and corrosion
- Improves the safety and reliability of HVAC systems
- Extends the lifespan of fittings and service valves
- Suitable for repeated professional use
- Reduces maintenance costs with durable construction
- Cost-effective sealing solution for technicians and service centers
The Brass Dead Nut 1/4 Inch (Pack of 4) is a durable, precision-engineered sealing fitting that provides secure, leak-free protection for 1/4-inch service ports and flare connections. Built from premium solid brass, it delivers long-lasting reliability, making it an essential accessory for HVAC, refrigeration, gas, and plumbing maintenance professionals.
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