Mutual Screw & Supply

0.103" CS X 1.486" ID Silicone O-Rings | AS568-128 | Dash 128 | FDA Compliant | 70 Durometer | Red (120 / Pkg.)

0.103" CS X 1.486" ID Silicone O-Rings | AS568-128 | Dash 128 | FDA Compliant | - Main image
$37.18 $53.11 In stock

Silicone o-rings in AS568-128, 1.486" inner diameter by 0.103" 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: 128
  • Cross-section: 0.103" (2.62 mm)
  • Inner diameter: 1.486" (37.74 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: 120 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 (4.6 / 5 · 5 reviews)

Ellie J. ★★★★★

I've been swapping out old Buna-N rings for these red silicone ones in a hot water application and they handle the temperature much better. The 70 durometer feels just right — not too stiff to seat properly but firm enough to hold pressure.

Eva ★★★★★

The red color makes them easy to spot during assembly, and the 70 durometer silicone feels flexible yet sturdy when stretching over the fitting. I’ve used these in a hot-water line and they’ve held up without swelling, which is more than I can say for cheaper rubber ones.

Christopher U. ★★★★★

I replaced the standard Buna-N seals in my hot water recirculation pump with these silicone rings, and they haven't hardened or leaked after three months of near-boiling use. The 70 durometer feels just right for a snug seal without being a struggle to install.