Mutual Screw & Supply

0.07" CS X 3.489" ID Silicone O-Rings | AS568-043 | Dash 043 | FDA Compliant | 70 Durometer | Red (55 / Pkg.)

0.07" CS X 3.489" ID Silicone O-Rings | AS568-043 | Dash 043 | FDA Compliant | - Main image
$36.59 $50.12 In stock

Silicone o-rings in AS568-043, 3.489" inner diameter by 0.07" 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: 043
  • Cross-section: 0.07" (1.78 mm)
  • Inner diameter: 3.489" (88.62 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: 55 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)

James ★★★★★

I needed a reliable seal for a hot water application, and these FDA-compliant rings handle the 450°F max perfectly without any melting or deformation—they fit snugly first try. The 70 durometer silicone is soft enough to seat easily yet firm enough to hold pressure.

Evelyn X. ★★★★★

The -80°F temperature rating gives me confidence using these in a freezer application, and the red color makes them easy to spot during maintenance. They fit perfectly on my 3.5-inch diameter fittings.

Sofia ★★★★★

Installed these on a high-heat application where standard Buna-N would've melted, and the 450°F rating handled it easily. The 70 durometer feels just right for a snug seal without being too stiff.