Mutual Screw & Supply

0.139" CS X 2.609" ID Viton FKM O-Rings | AS568-231 | Dash 231 | 75 Durometer | Brown (40 / Pkg.)

0.139" CS X 2.609" ID Viton FKM O-Rings | AS568-231 | Dash 231 | 75 Durometer | - Main image
$40.37 $56.86 In stock

Viton FKM o-rings in AS568-231, 2.609" inner diameter by 0.139" cross-section. Service range -15°F to +400°F (-26°C to +204°C). Also known as FKM, Fluoroelastomer.

Specifications

  • Product type: O-Ring
  • Material: Viton FKM
  • AS568 dash size: 231
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 2.609" (66.27 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 40 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 (4.4 / 5 · 5 reviews)

Matthew G. ★★★★★

The 75 durometer stiffness felt right when I seated them into the groove, and the brown color makes them easy to spot during assembly. These fit perfectly on my 2.609" ID application, and the Viton material should easily handle the 400°F peaks I occasionally hit.

Owen ★★★★★

I needed o-rings that could handle high heat, and these Viton FKM ones are rated up to 400°F, so they're perfect for my engine application. The 75 durometer feels firm but still flexible enough to seat easily.

Charlotte Q. ★★★★☆

These Viton FKM o-rings handled a high-temp application near my furnace without any signs of melting or hardening. The 0.139" cross-section is a bit thicker than my old seals, so it took a little extra effort to get them seated properly. A solid improvement for the heat range, though I wish they cam