Mutual Screw & Supply

0.139" CS X 2.234" ID Buna-N Nitrile O-Rings | AS568-228 | Dash 228 | 90 Durometer (250 / Pkg.)

0.139" CS X 2.234" ID Buna-N Nitrile O-Rings | AS568-228 | Dash 228 | 90 - Main image
$39.58 $58.2 In stock

Buna-N Nitrile o-rings in AS568-228, 2.234" inner diameter by 0.139" cross-section. 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: 228
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 2.234" (56.74 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 250 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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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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)

Mia ★★★★★

I needed a reliable seal for a high-temp hydraulic line, and these 90-durometer Buna-N o-rings fit perfectly—the 2.234-inch inner diameter was spot-on for my application. They handled the 200°F fluid without any sign of swelling or cracking.

Steven Y. ★★★★★

The 90 durometer makes these o-rings feel exceptionally firm and durable, which is exactly what I needed for a high-pressure hydraulic repair. They seated perfectly in the groove without any distortion, and the package of 250 is a great value for the price.

Aurora B. ★★★★★

The fit on my industrial pump housing was perfect, and the 90 durometer material handles higher pressure without deforming. I ordered the 250-pack and appreciate that every single ring was clean and uniform in size.