Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-418 | Dash 418 | 70 Durometer | Black (50 / Pkg.)

Buna-N Nitrile O-Rings | AS568-418 | Dash 418 | 70 Durometer | Black (50 / Pkg.) - Main image
$44.08 $58.77 In stock

Buna-N Nitrile o-rings in AS568-418. Service range -40°F to +250°F (-40°C to +121°C). Also known as NBR, Buna-N, Chemigum, Hycar, Perbunan.

Specifications

  • Product type: O-Ring
  • Material: Buna-N Nitrile
  • AS568 dash size: 418
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 50 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Isabella I. ★★★★★

The 70 durometer hardness is perfect for my hydraulic fittings—they seal tightly without being too stiff. Nice to have a 50-pack handy for future repairs, too.

Owen B. ★★★★★

I needed a bulk pack of AS568-418 o-rings for a hydraulic repair and these sealed perfectly on the first try even at 180°F. The 50-count package is a solid value for anyone rebuilding multiple fittings.

Eva J. ★★★★★

The 70 durometer hardness is exactly what I needed for a moderate vacuum seal—they compress nicely without being too squishy. I've used about ten so far and every one seated perfectly in the groove.