Mutual Screw & Supply

0.21" CS X 2.225" ID Silicone O-Rings | AS568-331 | Dash 331 | FDA Compliant | 70 Durometer | Red (40 / Pkg.)

0.21" CS X 2.225" ID Silicone O-Rings | AS568-331 | Dash 331 | FDA Compliant | - Main image
$31.81 $53.01 In stock

Silicone o-rings in AS568-331, 2.225" inner diameter by 0.21" cross-section. Service range -80°F to +450°F (-62°C to +232°C). Also known as VMQ, Silastic.

Specifications

  • Product type: O-Ring
  • Material: Silicone
  • AS568 dash size: 331
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.225" (56.52 mm)
  • Durometer: 70 Shore A
  • Color: Red
  • Temperature range: -80°F to +450°F (-62°C to +232°C)
  • Measurement type: Imperial
  • Compliance: FDA 21 CFR 177.2600
  • Pack quantity: 40 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 (4.8 / 5 · 5 reviews)

Emma T. ★★★★★

The red color makes these o-rings easy to spot during assembly, and the 70 durometer feels just right for my water filter housing. They fit perfectly on the 2.225" ID flange and should handle the hot water cycles without issue.

Chloe ★★★★★

I was pleasantly surprised by how well these o-rings hold up under high heat in my lab setup—the -80°F to +450°F range is spot-on. The red color makes them easy to spot against black equipment, and the 70 durometer feels flexible yet firm enough for a tight seal.

David G. ★★★★★

These fit perfectly in my vacuum pump rebuild kit. The FDA compliance is a nice bonus since air can sometimes contact food prep areas.