Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-918 | Dash 918 | 90 Durometer (500 / Pkg.)

Buna-N Nitrile O-Rings | AS568-918 | Dash 918 | 90 Durometer (500 / Pkg.) - Main image
$40.36 $57.66 In stock

Buna-N Nitrile o-rings in AS568-918. 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: 918
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 500 per package
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When it ships

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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 (5.0 / 5 · 5 reviews)

Joshua ★★★★★

The 90 durometer rating is exactly what I needed for a high-pressure seal—these feel stiff enough to hold up without deforming during install. Shipping 500 in one pack means I've got spares for every future rebuild, which takes the stress out of ordering again.

Charlotte N. ★★★★★

I needed a bulk pack of these specific AS568-918 o-rings for a hydraulic rebuild, and the 500 count is perfect for keeping spares on hand. The Buna-N material feels durable, and it handled the 150°F oil bath test without any issues.

Andrew S. ★★★★★

The 90 durometer rating is exactly what I needed for a firmer seal, and the -40°F to +250°F range covers my outdoor gear perfectly. Having 500 in one pack means I won't be scrambling for replacements anytime soon.