Mutual Screw & Supply

0.139" CS X 5.234" ID HNBR O-Rings | AS568-252 | Dash 252 | 80 Durometer (12 / Pkg.)

0.139" CS X 5.234" ID HNBR O-Rings | AS568-252 | Dash 252 | 80 Durometer (12 / - Main image
$34.07 $53.23 In stock

HNBR o-rings in AS568-252, 5.234" 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: 252
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 5.234" (132.94 mm)
  • Durometer: 80 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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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)

Benjamin K. ★★★★★

Installed these in a hydraulic cylinder that sees plenty of heat, and the -40°F to +300°F rating matches real-world conditions perfectly. The 80 durometer feels just right for holding pressure without being too stiff.

Natalie ★★★★★

The rubber feels stiffer than standard o-rings I've used, but that's exactly what I needed for a high-temp seal on my compressor. Fit perfectly in the groove with no stretching issues.

Emma ★★★★★

I was a little worried these would be too stiff for my application, but the 80 durometer HNBR has held up perfectly under constant 250°F heat. These are a solid choice if you need a reliable seal in a high-temp environment.