Mutual Screw & Supply

0.139" CS X 4.359" ID Silicone O-Rings | AS568-245 | Dash 245 | FDA Compliant | 70 Durometer | Red (24 / Pkg.)

0.139" CS X 4.359" ID Silicone O-Rings | AS568-245 | Dash 245 | FDA Compliant | - Main image
$32.43 $51.47 In stock

Silicone o-rings in AS568-245, 4.359" 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: 245
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 4.359" (110.72 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: 24 per package
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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 (4.4 / 5 · 5 reviews)

Thomas ★★★★★

I needed high-temp seals for an industrial oven door, and these silicone rings handle the 450°F limit perfectly. They’re also noticeably softer than the cheap nitrile ones I tried before, which made installation much easier without any cracking.

Hannah C. ★★★★★

The red color made them easy to spot during a rebuild, and the 70 durometer silicone feels firm yet flexible enough to seat without prying. They slid into the groove smoothly and held their shape perfectly at 350°F in my test run.

Emily ★★★★★

The high temperature range on these o-rings covers everything I need, and the red color makes them easy to spot when I’m sorting through my stash. They seated perfectly in the groove and the 70 durometer feels just right for a snug seal without being too stiff.