Mutual Screw & Supply

0.21" CS X 3.85" ID Viton FKM O-Rings | AS568-344 | Dash 344 | 90 Durometer (16 / Pkg.)

0.21" CS X 3.85" ID Viton FKM O-Rings | AS568-344 | Dash 344 | 90 Durometer (16 - Main image
$39.92 $57.03 In stock

Viton FKM o-rings in AS568-344, 3.85" 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: 344
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 3.85" (97.79 mm)
  • Durometer: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 16 per package
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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 (4.2 / 5 · 5 reviews)

James ★★★★★

These fit perfectly in my hydraulic cylinder, and the 90 durometer handles the pressure without any issues. I appreciate that they can take up to 400°F, gives me peace of mind near the engine.

Sebastian W. ★★★★☆

The 90 durometer feels noticeably stiffer than the standard Buna-N rings I'm used to, which works great for my high-temp application. They all arrived in good shape and the price for a 16-pack was reasonable. Only minor complaint is that I wish the package had a few more spares.

Ellie ★★★★☆

Fit perfectly on a hydraulic cylinder I'm rebuilding, and the high temp rating gives me peace of mind. Only ding is the package had one ring with a tiny nick, but the rest are flawless.