Mutual Screw & Supply

0.139" CS X 3.359" ID Silicone O-Rings | AS568-237 | Dash 237 | FDA Compliant | 70 Durometer | Red (50 / Pkg.)

0.139" CS X 3.359" ID Silicone O-Rings | AS568-237 | Dash 237 | FDA Compliant | - Main image
$41.69 $55.59 In stock

Silicone o-rings in AS568-237, 3.359" inner diameter by 0.139" 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: 237
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 3.359" (85.32 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 (4.8 / 5 · 5 reviews)

Mia ★★★★★

I’d been using standard rubber gaskets in high-heat applications and needed something that wouldn’t crack. These silicone o-rings handle up to 450°F, so they’ve held up perfectly in my setup without any visible wear.

Madison N. ★★★★★

The red color makes them easy to spot during inventory, and the 70 durometer hardness feels just right for a snug seal without being stiff. I've used them in a -60°F freezer test and they held up without cracking, which is exactly what I needed for the temperature range.

Edward C. ★★★★★

The bright red color makes them easy to spot during assembly, and the 70 durometer silicone feels just rigid enough for a snug seal on my filter housing. They fit the 3.359" ID perfectly with zero stretch needed.