Mutual Screw & Supply

0.139" CS X 1.359" ID Viton FKM O-Rings | AS568-220 | Dash 220 | 90 Durometer (80 / Pkg.)

0.139" CS X 1.359" ID Viton FKM O-Rings | AS568-220 | Dash 220 | 90 Durometer - Main image
$38.01 $53.53 In stock

Viton FKM o-rings in AS568-220, 1.359" 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: 220
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.359" (34.52 mm)
  • Durometer: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 80 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 (4.8 / 5 · 5 reviews)

Leo H. ★★★★★

Replaced the worn seals on my hydraulic manifold and these sat perfectly in the grooves without any fuss. The 90 durometer hardness feels reassuringly stiff, and I'm glad they handle up to 400°F since things get hot fast in that room.

Claire S. ★★★★★

I needed some high-temp seals for a steam valve and these Viton rings handled the 350°F service without any softening. The 90 durometer feels noticeably stiffer than standard Buna-N, which actually works better in my setup.

Evelyn G. ★★★★★

Replaced the worn seals on a steam line that sees 350°F daily, and these Viton rings have held up flawlessly for three months now. The 90 durometer hardness makes them stiff enough to seat firmly without deforming, and the pack of 80 gives me spares for the next few rebuilds.