Mutual Screw & Supply

Silicone O-Rings | AS568-159 | Dash 159 | FDA Compliant | 70 Durometer | Red (50 / Pkg.)

Silicone O-Rings | AS568-159 | Dash 159 | FDA Compliant | 70 Durometer | Red - Main image
$34.07 $56.79 In stock

Silicone o-rings in AS568-159. 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: 159
  • 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: 50 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (4.2 / 5 · 5 reviews)

Claire ★★★★★

I needed a high-temp seal for a plumbing valve near a heater, and these handled up to 450°F without any issue. The 70 durometer feels pliable yet firm enough to hold a proper seal.

Kevin U. ★★★★★

Installed these in a hot water valve assembly that sees 400°F steam bursts, and the silicone held up perfectly without hardening or cracking. The 70 durometer feels just right—firm enough to seal but flexible for installation.

Stella ★★★★★

The red color makes them easy to spot during disassembly, and the 70 durometer feels just right for the pressure fittings I’m using them on. Handling the -80°F to +450°F range gives me peace of mind for my hot oil line, and the 50-pack is plenty for a few rebuilds.