Mutual Screw & Supply

0.21" CS X 2.975" ID Viton FKM O-Rings | AS568-337 | Dash 337 | 75 Durometer | Brown (10 / Pkg.)

0.21" CS X 2.975" ID Viton FKM O-Rings | AS568-337 | Dash 337 | 75 Durometer | - Main image
$32.51 $51.61 In stock

Viton FKM o-rings in AS568-337, 2.975" 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: 337
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.975" (75.56 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 10 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 (5.0 / 5 · 5 reviews)

Jason K. ★★★★★

The cross-section is exactly 0.21" as listed, so they seated snugly in my hydraulic fitting groove without any fuss. Viton handles the 300°F steam exposure here all day without hardening, and the brown color makes them easy to spot during inspections.

Nicholas H. ★★★★★

Just swapped out some worn o-rings in a hot water pump, and these Viton FKM ones handled the 180°F temp like a champ. The 0.21" cross-section fit perfectly into the groove with no struggle, and the brown color makes them easy to spot. For the price of a ten-pack, I’ve got spares for the next job.

Daniel R. ★★★★★

The temperature range on these is spot-on for what I needed, and the 75 durometer feels solid without being rock-hard during install. They seated cleanly into the groove and held their shape after a full day at 350°F.