Mutual Screw & Supply

0.21" CS X 2.1" ID Silicone O-Rings | AS568-330 | Dash 330 | FDA Compliant | 70 Durometer | Red (40 / Pkg.)

0.21" CS X 2.1" ID Silicone O-Rings | AS568-330 | Dash 330 | FDA Compliant | 70 - Main image
$35.5 $50.72 In stock

Silicone o-rings in AS568-330, 2.1" 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: 330
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.1" (53.34 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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Standard Shipping · United States: $0.00

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)

William ★★★★★

Used these for a home brewing seal replacement and they fit the threaded port perfectly. The 70 durometer feels just right—firm enough to seal but not too hard to compress. Glad I grabbed a pack of 40 for future projects.

Ellie L. ★★★★★

The red color makes them easy to spot in my parts drawer, and the 70 durometer stiffness feels just right for a snug seal. I've used them in a hot water line at 200°F with zero leaks so far.

Benjamin ★★★★★

I grabbed these for a high-temp lab fitting that kept leaking with standard Buna-N, and the 450°F rating on these silicone rings solved it instantly. The red color makes them easy to spot during installation, and the pack of 40 means I have spares for the next project.