Mutual Screw & Supply

0.21" CS X 3.725" ID Silicone O-Rings | AS568-343 | Dash 343 | FDA Compliant | 70 Durometer | Red (20 / Pkg.)

0.21" CS X 3.725" ID Silicone O-Rings | AS568-343 | Dash 343 | FDA Compliant | - Main image
$38.67 $51.56 In stock

Silicone o-rings in AS568-343, 3.725" 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: 343
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 3.725" (94.61 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: 20 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)

Natalie X. ★★★★★

The 70 durometer red silicone is noticeably firm and holds its shape perfectly under compression. Used these to seal my homebrew kettle’s lid and the fit was spot-on right out of the package.

Jason ★★★★★

The high-temperature rating was exactly what I needed for a sealing application near a hot water line. The 70 durometer feels pliable yet firm enough to hold pressure, and the red color makes them easy to spot during installation.

David ★★★★★

Used these to replace the gaskets on my pressure cooker lid and the 70 durometer silicone is just soft enough to seal perfectly without being a pain to install. The red color makes them easy to spot when I’m cleaning, too.