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Aluminum NPT Bungs
NPTal$3.75 - $5.506061 Aluminum NPT Weld-In Bungs – Lightweight & Corrosion-Resistant These NPT weld-in bungs are precision-machined from solid 6061-T6 aluminum bar stock and tapped to -
Stepped NPT bungs
SNPT$4.25 - $8.001018 Mild Steel NPT Weld-In Bungs – Multiple Thread Sizes Available These weld-in NPT threaded bungs are precision-machined from solid 1018 cold rolled mild steel round stock -
Stainless Stepped NPT bungs
SNPT-SS$4.95 - $11.95Stainless Steel NPT Weld-In Bungs – Multiple Sizes Available Our premium 300 series stainless steel NPT threaded weld-in bungs are precision-machined from solid round stock and tapped to your... -
Aluminum Stepped Blind Tank Bungs
ASBTB$4.506061 Aluminum Blind Threaded Stepped Bung – For Fuel, Oil & Catch Tanks These weld-in aluminum blind threaded bungs—also known as top hat bungs—are ideal for custom fabrication of aluminum gas... -
Stainless NPT Bungs
NPTss$3.75 - $5.50Stainless Steel NPT Weld-In Bungs – Precision Machined These stainless steel NPT weld-in bungs are machined from solid stainless steel bar stock, then drilled and tapped to
Description
Aluminum NPT Weld-In Bungs – 6061-T6 – Multiple Sizes Available
Our 6061-T6 aluminum NPT weld-in bungs are expertly machined from high-strength round stock and tapped to your selected NPT thread size. Lightweight yet durable, these aluminum bungs are ideal for custom fabricators building fluid reservoirs, gas tanks, oil tanks, and more.
Each bung features a wide flange diameter to maximize weld surface area, ensuring a strong, secure bond when welding to aluminum components. Available in multiple sizes and configurations, these bungs are perfect for applications where weight savings and corrosion resistance matter—such as racing, off-road, or custom motorcycle builds.
Available Sizes & Pricing:
| NPT Thread | Overall Length | Flange Diameter | Stepped Diameter |
|---|---|---|---|
| 1/8" NPT | 1/2" | 7/8" | 5/8" |
| 1/4" NPT | 1/2" | 1" | 3/4" |
| 3/8" NPT | 1/2" | 1-1/4" | 1" |
| 1/2" NPT | 0.650" | 1-1/4" | 1" |
Features:
Made from aerospace-grade 6061-T6 aluminum
Lightweight with excellent strength-to-weight ratio
Precision-tapped NPT threads
Flanged design for increased weld area and secure installation
Ideal for custom fabrication of tanks, catch cans, and more
From motorcycle fuel tanks to off-road coolant reservoirs, these aluminum bungs provide the performance and reliability you need for your custom builds.