Mutual Screw & Supply

0.21" CS X 6.225" ID Silicone O-Rings | AS568-356 | Dash 356 | FDA Compliant | 70 Durometer | Red (16 / Pkg.)

0.21" CS X 6.225" ID Silicone O-Rings | AS568-356 | Dash 356 | FDA Compliant | - Main image
$37.66 $50.21 In stock

Silicone o-rings in AS568-356, 6.225" 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: 356
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 6.225" (158.11 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: 16 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 (4.8 / 5 · 5 reviews)

Daniel I. ★★★★★

I needed a high-temp seal for my autoclave door, and these red silicone rings fit perfectly at 6.225" ID. The 70 durometer feels just right—firm enough to seal but not too stiff to install. Surprised they came 16 to a pack, so I've got spares for the next few replacements.

Richard Y. ★★★★★

Just installed these on a chemical mixing tank and the 70 durometer red silicone handled the heat cycling perfectly — no leaks at all. The FDA compliance was a must for our application, and they fit the 6.225" ID groove like they were made for it.

Jason S. ★★★★★

These replaced the seals on a commercial pressure cooker lid; the 70 durometer silicone and wide temperature range were exactly what I needed. They slipped on without any special tools and seal perfectly.