Mutual Screw & Supply

0.21" CS X 1.975" ID Silicone O-Rings | AS568-329 | Dash 329 | FDA Compliant | 70 Durometer | Red (50 / Pkg.)

0.21" CS X 1.975" ID Silicone O-Rings | AS568-329 | Dash 329 | FDA Compliant | - Main image
$41.22 $60.62 In stock

Silicone o-rings in AS568-329, 1.975" 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: 329
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.975" (50.16 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: 50 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 (4.6 / 5 · 5 reviews)

Sofia M. ★★★★★

Pulled these out of the package and the red color makes it easy to spot on my workbench. The 70 durometer feels perfectly pliable yet firm enough for my hydraulic fitting, and the fit on the 1.975" ID is spot-on.

Sofia G. ★★★★★

Used these to replace a worn seal on a steam table, and the silicone handled the heat perfectly without any softening or swelling. The red color makes them easy to spot during installation. Fit was spot-on for the dash 329 size.

Evelyn ★★★★★

I needed a high-temp seal for a hot water application, and these silicone rings handled it without issue. The 70 durometer feels just right—firm but not too stiff, and the red color makes them easy to spot in my parts bin.