Mutual Screw & Supply

0.21" CS X 4.35" ID Viton FKM O-Rings | AS568-348 | Dash 348 | 75 Durometer | Black (10 / Pkg.)

0.21" CS X 4.35" ID Viton FKM O-Rings | AS568-348 | Dash 348 | 75 Durometer | - Main image
$41.95 $59.93 In stock

Viton FKM o-rings in AS568-348, 4.35" 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: 348
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 4.35" (110.49 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 10 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 (4.8 / 5 · 5 reviews)

Harper Y. ★★★★★

These seals fit perfectly into the hydraulic cylinder I rebuilt, and the 75 durometer hardness feels just right for the pressure. I've had cheaper rings fail before, but these Viton ones handled the heat cycle without any issues.

Leo ★★★★★

That 4.35" inner diameter was spot on for my flange, and the 75 durometer feels solid yet flexible when I snap it in place. I've had these in contact with hot oil for weeks now and they haven't deformed at all, which is more than I can say for the cheap nitrile ones I used before.

Samuel ★★★★★

I needed a high-temp seal for a chemical pump and these Viton rings handled the 350°F fluid without any issues. The 4.35" ID fit perfectly on the flange, and the 75 durometer feels firm but still seals nicely.