-
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$4.50These aluminum blind threaded bungs are great for use in gas tanks, oil tanks, automotive catch tanks and resivours or any other aluminum fluid conatiner. They have a step machined in them to keep... -
Steel NPT Bungs
NPT 83$3.00 - $5.501018 Mild Steel NPT Weld-In Bungs – Multiple Sizes Available These NPT weld-in bungs are precision-machined from solid 1018 cold rolled mild steel bar stock, then drilled
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 | Price |
|---|---|---|---|---|
| 1/8" NPT | 1/2" | 7/8" | 5/8" | $4.75 |
| 1/4" NPT | 1/2" | 1" | 3/4" | $4.95 |
| 3/8" NPT | 1/2" | 1-1/4" | 1" | $5.45 |
| 1/2" NPT | 0.650" | 1-1/4" | 1" | $5.75 |
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.