Mutual Screw & Supply

0.21" CS X 4.225" ID Viton FKM O-Rings | AS568-347 | Dash 347 | 90 Durometer (14 / Pkg.)

0.21" CS X 4.225" ID Viton FKM O-Rings | AS568-347 | Dash 347 | 90 Durometer - Main image
$39.7 $54.39 In stock

Viton FKM o-rings in AS568-347, 4.225" 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: 347
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 4.225" (107.31 mm)
  • Durometer: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 14 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 (4.2 / 5 · 5 reviews)

Stella ★★★★★

The high-temp rating on these o-rings is exactly what I needed for my compressor rebuild, and the 90 durometer feels much more durable than the standard Buna-N ones I've tried before. They slipped into the groove without any binding.

Sophia E. ★★★★★

Fitting the AS568-347 size was spot-on for my application, and that 90 durometer gives it a nice, solid squeeze without feeling mushy. I ran them near 350°F and they held up with zero hardening or cracking after a week.

Miles E. ★★★★★

These o-rings fit perfectly into my hydraulic cylinder groove and the 90 durometer feels reassuringly firm. I needed something that could handle high heat in a pump application and the Viton FKM material seems up to the job so far. Fourteen in the pack gives me spares for future repairs which is nic