Mutual Screw & Supply

0.139" CS X 4.234" ID HNBR O-Rings | AS568-244 | Dash 244 | 90 Durometer (10 / Pkg.)

0.139" CS X 4.234" ID HNBR O-Rings | AS568-244 | Dash 244 | 90 Durometer (10 / - Main image
$38.56 $53.56 In stock

HNBR o-rings in AS568-244, 4.234" 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: 244
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 4.234" (107.54 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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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)

Edward V. ★★★★★

I needed a 4.234" ID seal that could survive hot transmission fluid, and the 90-durometer HNBR hasn't let me down. Fit the groove perfectly out of the package, and I’m grabbing another pack just to keep on the shelf.

Hannah ★★★★★

The 90-durometer hardness gives these a firm, stable feel when seated, and the HNBR handles heat without softening. Slid them into a hot-oil application at around 280°F and they've held their shape perfectly so far.

Carter W. ★★★★★

These o-rings fit perfectly on my hydraulic cylinder and the 90 durometer feels noticeably firmer than standard 70. I'm confident they'll hold up well to the heat and pressure in my application.