Mutual Screw & Supply

0.21" CS X 3.1" ID Silicone O-Rings | AS568-338 | Dash 338 | FDA Compliant | 70 Durometer | Red (22 / Pkg.)

0.21" CS X 3.1" ID Silicone O-Rings | AS568-338 | Dash 338 | FDA Compliant | 70 - Main image
$32.25 $52.87 In stock

Silicone o-rings in AS568-338, 3.1" 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: 338
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 3.1" (78.74 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: 22 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)

Evelyn Q. ★★★★★

These fit perfectly on my pool filter housing and the 70 durometer feels solid, not flimsy like some cheap packs I've tried. I've had them in for a few weeks now with no leaks, and knowing they're FDA compliant gives me peace of mind for the potable water side too.

Robert ★★★★★

The red color makes these much easier to spot against dark backgrounds when I’m doing quick maintenance checks. The 70 durometer feels firm yet flexible enough to seat perfectly in the groove without tools. Great seal on the lid of my pressure cooker after the old one cracked.

Sophia ★★★★★

Used these to replace the worn seals on a homebrew keg and they fit perfectly. The red silicone feels more flexible than the black rubber ones I had before, and I trust that high-temp rating for my steam sanitizing.