Mutual Screw & Supply

0.21" CS X 2.1" ID Viton FKM O-Rings | AS568-330 | Dash 330 | X-Ring | 70 Durometer (8 / Pkg.)

0.21" CS X 2.1" ID Viton FKM O-Rings | AS568-330 | Dash 330 | X-Ring | 70 - Main image
$39.65 $54.31 In stock

Viton FKM o-rings in AS568-330, 2.1" inner diameter by 0.21" 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: 330
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.1" (53.34 mm)
  • Durometer: 70 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 8 per package
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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 (5.0 / 5 · 5 reviews)

Sebastian H. ★★★★★

Finally got these for a stubborn hydraulic fitting that kept leaking under steam heat. The Viton material held up perfectly at over 350°F where standard Buna-N would have melted.

Brian V. ★★★★★

I needed an o-ring for a high-temp hydraulic application and these Viton FKM rings handled 350°F without any softening. The 70 durometer feels just right—firm enough to seal but still easy to stretch into place.

Ava ★★★★★

Used one to replace a leaky gasket on a hot water valve at work, and it held up perfectly under 190°F steam service. The 70 durometer feels just right for this application.