Mutual Screw & Supply

0.21" CS X 3.225" ID Viton FKM O-Rings | AS568-339 | Dash 339 | 90 Durometer (25 / Pkg.)

0.21" CS X 3.225" ID Viton FKM O-Rings | AS568-339 | Dash 339 | 90 Durometer - Main image
$39.13 $60.2 In stock

Viton FKM o-rings in AS568-339, 3.225" 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
  • Material: Viton FKM
  • AS568 dash size: 339
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 3.225" (81.91 mm)
  • Durometer: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 25 per package
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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)

Richard ★★★★★

These are working perfectly in a high-heat application where standard Buna-N kept failing. The 3.225" ID fit my groove snugly, and the Viton material feels much more durable. Already ordered another pack for spares.

Hannah M. ★★★★★

The 90 durometer rating on these seals makes them feel really sturdy compared to the last ones I used. They seated perfectly into the groove and withstood a 350°F test cycle in my compressor without any issues.

Scarlett W. ★★★★★

I needed a high-temp seal for a steam application, and these Viton O-rings handle up to 400°F without any creep. The 90 durometer is noticeably firm, making installation easy without deforming.