Mutual Screw & Supply

0.139" CS X 3.859" ID HNBR O-Rings | AS568-241 | Dash 241 | 90 Durometer (10 / Pkg.)

0.139" CS X 3.859" ID HNBR O-Rings | AS568-241 | Dash 241 | 90 Durometer (10 / - Main image
$31.59 $51.78 In stock

HNBR o-rings in AS568-241, 3.859" 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: 241
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.859" (98.02 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +300°F (-40°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 10 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)

Michael P. ★★★★★

I needed a high-temp seal for my compressor and these HNBR o-rings handle the 300°F range perfectly without degrading. The 90 durometer feels nice and firm, and they seated easily in the groove.

Madison Z. ★★★★★

These fit perfectly on my hydraulic cylinder rod, and the 90 durometer feels much sturdier than the standard ones I've used before. Exactly what I needed for the -40°F range.

Isabella F. ★★★★★

Put these on a hydraulic cylinder that sees constant 180°F oil, and they're holding up perfectly after a month of heavy use. The 90 durometer material feels significantly more durable than standard Buna-N in this application. Exactly what I needed for the high-temp seal replacement.