Mutual Screw & Supply

0.139" CS X 3.109" ID Buna-N Nitrile O-Rings | AS568-235 | Dash 235 | Metal Detectable | 70 Durometer (24 / Pkg.)

0.139" CS X 3.109" ID Buna-N Nitrile O-Rings | AS568-235 | Dash 235 | Metal - Main image
$39.35 $52.47 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: 70 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Metal detectable: Yes
  • Pack quantity: 24 per package
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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 (4.4 / 5 · 5 reviews)

Emily ★★★★★

The 70 durometer feels just right for our hydraulic fittings — not too stiff, not too soft. Installed a dozen on an air actuator line and they seated perfectly with no leaks.

Edward M. ★★★★★

I needed o-rings that could handle hydraulic fluid in a food processing environment, and these Buna-N 70 durometer rings fit perfectly on the 3.109" ID flange. The metal detectable feature gives me peace of mind during inspections.

Joseph ★★★★★

The metal detectable feature is a lifesaver for our food processing line, and these 3.109" ID rings fit perfectly on the piston. They’ve held up great under high heat and pressure with no swelling after a week of use.