Mutual Screw & Supply

0.21" CS X 2.725" ID HNBR O-Rings | AS568-335 | Dash 335 | 90 Durometer (10 / Pkg.)

0.21" CS X 2.725" ID HNBR O-Rings | AS568-335 | Dash 335 | 90 Durometer (10 / - Main image
$44.73 $62.13 In stock

HNBR o-rings in AS568-335, 2.725" inner diameter by 0.21" 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: 335
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.725" (69.22 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 (4.6 / 5 · 5 reviews)

Emily ★★★★★

These handled the heat cycling on our hydraulic press without any trouble, and the 90 durometer feels much more durable than standard Buna-N. Installed easily thanks to the precise dimensions, exactly what we needed.

James ★★★★★

The 90 durometer feels plenty firm for my hydraulic application, and the -40°F to 300°F range gives me confidence in extreme conditions. Sealed perfectly on the first try with no leaks.

Grace ★★★★★

Needed a high-temp seal for a compressor application, and these HNBR rings handled the 275°F operating range without any softening. The 90 durometer feels noticeably stiffer than standard Buna, which is exactly what I wanted for the higher pressure.