Mutual Screw & Supply

0.21" CS X 3.225" ID Viton FKM O-Rings | AS568-339 | Dash 339 | 75 Durometer | Brown (20 / Pkg.)

0.21" CS X 3.225" ID Viton FKM O-Rings | AS568-339 | Dash 339 | 75 Durometer | - Main image
$39.63 $66.05 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: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 20 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)

Brian ★★★★★

Ordered these for a high-temp seal in a compressor, and the -15°F to +400°F range handles the cycling perfectly. The 0.21" cross-section fit snugly into the groove without any struggle.

Matthew ★★★★★

The 75 durometer rating is perfect for my high-temp pneumatic seals, and the brown color makes them easy to spot against the metal. They fit snugly into the groove without any deformation, and the package of 20 will last me a while.

Owen ★★★★★

I used these to replace worn seals on a hydraulic fitting that sees constant 300°F heat—the Viton material holds up perfectly where standard rubber would have melted. The brown color is a nice bonus for matching industrial equipment.