Mutual Screw & Supply

0.139" CS X 3.359" ID HNBR O-Rings | AS568-237 | Dash 237 | 80 Durometer (16 / Pkg.)

0.139" CS X 3.359" ID HNBR O-Rings | AS568-237 | Dash 237 | 80 Durometer (16 / - Main image
$41.01 $54.68 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: 80 Shore A
  • Temperature range: -40°F to +300°F (-40°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 16 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 (4.6 / 5 · 5 reviews)

Amelia ★★★★★

Finally found the exact AS568-237 size I needed for a high-temp hydraulic seal. These HNBR rings handled 250°F in my test rig without any hardening or cracking.

Isabella ★★★★★

The 80 durometer HNBR feels noticeably stiffer than standard Buna-N, which works perfectly for my high-temp hydraulic application. These 237 o-rings seated nicely in the groove without any twisting. Definitely a solid buy for the price.

Owen U. ★★★★★

I needed a specific AS568-237 size for a high-temp hydraulic repair, and these HNBR rings fit perfectly. The 80 durometer feels sturdy, and the package of 16 gives me spares for future jobs.