Mutual Screw & Supply

0.139" CS X 3.109" ID Viton FKM O-Rings | AS568-235 | Dash 235 | X-Ring | 70 Durometer (10 / Pkg.)

0.139" CS X 3.109" ID Viton FKM O-Rings | AS568-235 | Dash 235 | X-Ring | 70 - Main image
$39.02 $59.12 In stock

Viton FKM o-rings in AS568-235, 3.109" 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 (X-Ring)
  • Material: Viton FKM
  • AS568 dash size: 235
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.109" (78.97 mm)
  • Durometer: 70 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 10 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)

Eli H. ★★★★★

Replacing the old Buna-N ones on my hydraulic manifold was a five-minute job, and these Viton x-rings seated perfectly with no twisting. The 70 durometer feels firm but forgiving, and I’m confident they’ll hold up past 400°F based on the spec sheet.

William V. ★★★★★

These Viton o-rings took the 400°F heat in my steam line without any swelling or hardening, which is exactly what I needed. The 3.109" inner diameter fit my groove perfectly on the first try.

Miles ★★★★★

The cross-section is noticeably beefier than my old standard o-rings, and the 70 durometer feels just right for sealing a stubborn hydraulic fitting. I've had it in service near 350°F for a week now and no leaks, so the Viton's clearly earning its keep.