EVIL ENERGY 6AN Weld-On Bung Fitting Stainless Steel 2pc — 304 SS, 1000 PSI Rated

These two-piece weld-on bungs provide a durable, pressure-rated connection point for fuel, oil, or coolant systems where a permanent AN-style port is required. Machined from 304 stainless steel, each bung features the standard 37° AN flare sealing face and a 9/16-18 UNF thread for secure 6AN male fittings. They are built to withstand high pressure and a wide temperature range, making them suitable for many automotive and motorsport plumbing needs when installed properly.

How strong and temperature-resistant are these weld-on bungs?

Each EVIL ENERGY 6AN weld-on bung is tested for high-pressure applications and made from corrosion-resistant 304 stainless steel. The parts are rated to handle pressures up to 1000 PSI (68.94 bar) and operate across a broad temperature span.

• Material: 304 stainless steel for corrosion resistance.
• Maximum pressure: 1000 PSI (68.94 bar).
• Operating temperature range: -65°F to 252°F (-54°C to 122°C).
• Durable machining for repeatable AN flare sealing.

What are the threading and sealing details I need to know?

The thread profile on these bungs is 9/16-18 UNF to accept standard 6AN male fittings. Sealing is achieved by the AN-style 37° flare face on the AN side rather than by thread sealant, which yields a metal-to-metal seal when the mating fitting is tightened correctly.

• Thread size: 9/16-18 UNF (fits 6AN male fittings).
• Sealing method: 37° AN flare on the mating surface.
• A proper torque and correct flare fitting ensure leak-free assembly.
• Avoid thread sealant on the flare sealing face; use standard AN assembly practice.

How should these bungs be welded and prepared for use?

These bungs are intended for weld-in installation. After welding, allow the assembly to cool naturally for three hours before pressurizing or using the system to avoid heat-related stress. Because welding affects the metal and surrounding components, a professional welder or experienced installer is recommended for reliable, safe results.

• Weld-in installation requires proper fit-up and tack welding first.
• Allow three hours of natural cooling after welding before service use.
• Professional welding recommended to avoid warping and ensure seal integrity.
• Inspect welds and the 37° sealing face for cleanliness and true fit before assembly.

Who is this for? EVIL ENERGY 6AN male weld-on bungs are aimed at mechanics, fabricators, motorsport teams, and DIY enthusiasts who need a permanent AN port in fuel cells, oil tanks, or coolant lines. If you require a corrosion-resistant, high-pressure AN access point and plan to have the parts welded in by a qualified technician, this two-piece stainless steel set gives a compact, serviceable solution.