Mutual Screw & Supply

0.139" CS X 3.109" ID Buna-N Nitrile O-Rings | AS568-235 | Dash 235 | 90 Durometer (150 / Pkg.)

0.139" CS X 3.109" ID Buna-N Nitrile O-Rings | AS568-235 | Dash 235 | 90 - Main image
$34.91 $56.3 In stock

Buna-N Nitrile o-rings in AS568-235, 3.109" 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: 235
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.109" (78.97 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 150 per package
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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)

Kevin ★★★★★

I was replacing the o-rings on a hydraulic cylinder and the 90 durometer hardness on these made installation much easier without deforming. The -40°F to +250°F temperature range is exactly what I needed for the heating system.

James O. ★★★★★

These are the first nitrile o-rings I've bought in the 90 durometer hardness, and that extra stiffness made all the difference for my high-pressure line. The -40°F to +250°F range covers everything I need, and having 150 in the pack means I've got spares for years.

Ruby V. ★★★★★

Exactly 3.109" ID, the 90 durometer gave me a firm seal on my hydraulic cylinder rebuild. These fit perfectly and the package of 150 will last me for many projects.