Mutual Screw & Supply

0.139" CS X 2.234" ID Buna-N Nitrile O-Rings | AS568-228 | Dash 228 | 70 Durometer | Black (300 / Pkg.)

0.139" CS X 2.234" ID Buna-N Nitrile O-Rings | AS568-228 | Dash 228 | 70 - Main image
$36.63 $53.08 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: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 300 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 (4.6 / 5 · 5 reviews)

Hannah ★★★★★

The 2.234" inner diameter fit my hydraulic cylinder perfectly, and the 70 durometer feels firm yet flexible enough to seat without fighting me. Hard to beat having 300 of these on hand for the shop.

Michael ★★★★★

The 2.234" inner diameter fit perfectly on my shaft, and the 70 durometer hardness feels solid without being too stiff. I've got 300 of them now, so I'm set for years of rebuilds.

John L. ★★★★★

Just swapped out a worn seal in my hydraulic pump with this AS568-228 size, and it seated perfectly without any twisting. The 70 durometer feels firm enough for the job, and the -40°F to +250°F range gives me confidence it'll hold up in the cold shop this winter.