Mutual Screw & Supply

0.139" CS X 2.609" ID Viton FKM O-Rings | AS568-231 | Dash 231 | 90 Durometer (50 / Pkg.)

0.139" CS X 2.609" ID Viton FKM O-Rings | AS568-231 | Dash 231 | 90 Durometer - Main image
$33.98 $52.28 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: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 50 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 (4.4 / 5 · 5 reviews)

Jacob S. ★★★★★

Used these to replace some aging seals on a hydraulic cylinder, and the -15°F to 400°F range gave me confidence it'll handle the heat cycles. The 50-pack is perfect since I'll keep spares on hand.

Amelia ★★★★★

The 90 durometer really holds its shape under pressure, and the 0.139" cross-section fit perfectly into our hydraulic line's groove. These Viton rings handled the 350°F steam test without any softening, exactly what I needed for that high-temp valve repair.

Emma J. ★★★★★

Needed a reliable seal for a hot oil pump that keeps failing with standard rubber, and these FKM rings took the temperature without any softening. The 90 durometer feels noticeably stiffer than my usual Nitrile ones, which is exactly what I needed.