Beginner — under 30 min
Description
This O-ring offers excellent resistance to petroleum-based oils and fuels, as well as water and alcohol. It also provides good resistance to acids and bases, excluding those with a strong oxidizing effect. Key specifications include an inside diameter of 0.239 inches, an outside diameter of 0.379 inches, and a thickness of 0.070 inches. It comes in a standard unit pack of 20.
Fitment
Fitment Guaranteed
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | NATIONAL |
| Part Number | N038 010PKG |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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