Mutual Screw & Supply

0.139" CS X 3.359" ID HNBR O-Rings | AS568-237 | Dash 237 | 90 Durometer (12 / Pkg.)

0.139" CS X 3.359" ID HNBR O-Rings | AS568-237 | Dash 237 | 90 Durometer (12 / - Main image
$33.84 $55.48 In stock

HNBR o-rings in AS568-237, 3.359" inner diameter by 0.139" cross-section. Service range -40°F to +300°F (-40°C to +149°C). Also known as HSN, Highly Saturated Nitrile.

Specifications

  • Product type: O-Ring
  • Material: HNBR
  • AS568 dash size: 237
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.359" (85.32 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +300°F (-40°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 12 per package
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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 (4.8 / 5 · 5 reviews)

Kevin S. ★★★★★

These fit perfectly in my hydraulic cylinder repair kit, and the 300°F temp rating gives me confidence they'll hold up under hot oil. The AS568-237 size matched the original seal exactly.

Ryan ★★★★★

The cross-section is exactly 0.139" as spec'd, so these seat perfectly in my groove without any fiddling. I've had them in a hot oil application hovering near 300°F for three weeks now and they're holding up like champs.

Leo Y. ★★★★★

The 90-durometer HNBR handles the higher pressures in my hydraulic cylinder without any squeezing out. These specific AS568-237 dimensions were exactly what I needed to seal a worn pump shaft.