Mutual Screw & Supply

0.21" CS X 5.725" ID Silicone O-Rings | AS568-354 | Dash 354 | FDA Compliant | 70 Durometer | Red (18 / Pkg.)

0.21" CS X 5.725" ID Silicone O-Rings | AS568-354 | Dash 354 | FDA Compliant | - Main image
$38.1 $52.91 In stock

Silicone o-rings in AS568-354, 5.725" 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: 354
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 5.725" (145.41 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: 18 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)

Charlotte V. ★★★★★

I needed a precise fit for a high-heat gasket repair, and these 0.21" cross-section rings sealed perfectly. The red color made them easy to spot during installation, and the silicone feels flexible yet sturdy.

Christopher ★★★★★

The wide temperature range was the reason I grabbed these, and for the food-grade silicone they feel quite sturdy. They seated nicely into the groove without any fuss, so I’m confident they’ll hold up where I need them.

David R. ★★★★★

The red color makes them easy to spot during reassembly, and the 70 durometer feels just right for a snug but workable fit. These handled a hot water line test without any softening, so I'm confident they'll last. Pack of 18 is plenty for what I needed.