Mutual Screw & Supply

0.21" CS X 16.975" ID Silicone O-Rings | AS568-387 | Dash 387 | FDA Compliant | 70 Durometer | Red (5 / Pkg.)

0.21" CS X 16.975" ID Silicone O-Rings | AS568-387 | Dash 387 | FDA Compliant | - Main image
$41.92 $57.43 In stock

Silicone o-rings in AS568-387, 16.975" 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: 387
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 16.975" (431.17 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: 5 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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)

Evelyn H. ★★★★★

The red color makes them easy to spot against my dark machinery, and the 70 durometer silicone feels flexible yet sturdy. I used them to replace worn o-rings in a hot water system, and they sealed perfectly with no leaks at 212°F.

Sofia ★★★★★

These held up perfectly during a high-temp pasteurization cycle in our food processing line, handling 400°F without any hardening. The 70 durometer gives them just the right firmness for a solid seal without being impossible to install.

Samuel E. ★★★★★

The inner diameter was spot on for my large flange, and the red color makes them easy to spot during maintenance. They fit snugly without any stretching issues.