Mutual Screw & Supply

0.21" CS X 8.225" ID Viton FKM O-Rings | AS568-364 | Dash 364 | 75 Durometer | Black (20 / Pkg.)

0.21" CS X 8.225" ID Viton FKM O-Rings | AS568-364 | Dash 364 | 75 Durometer | - Main image
$85.46 $129.49 In stock

Viton FKM o-rings in AS568-364, 8.225" 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: 364
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 8.225" (208.91 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • 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 (4.6 / 5 · 5 reviews)

Owen C. ★★★★★

Popped these into a hydraulic cylinder that sees temps around 300°F, and they sealed up immediately without any leaks. The 75 durometer feels just right for the application—not too stiff, not too soft.

James L. ★★★★★

These have held up perfectly in a high-heat pump application where standard Buna-N rings would have failed in weeks. The 75 durometer feels just right for this static seal, and the 20-pack was more than enough for my project.

Ryan H. ★★★★★

I was a bit skeptical about the size at first, but these AS568-364 Viton o-rings fit perfectly in my hydraulic fitting. The 75 durometer feels robust, and I’m relieved they’re rated for up to 400°F given the heat around my pump.