Mutual Screw & Supply

0.21" CS X 18.475" ID Silicone O-Rings | AS568-390 | Dash 390 | FDA Compliant | 70 Durometer | Red (5 / Pkg.)

0.21" CS X 18.475" ID Silicone O-Rings | AS568-390 | Dash 390 | FDA Compliant | - Main image
$39.13 $61.14 In stock

Silicone o-rings in AS568-390, 18.475" 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: 390
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 18.475" (469.26 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: 5 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 (4.6 / 5 · 5 reviews)

John ★★★★★

These rings fit my large brewing kettle lid perfectly, the 18.475" ID was exactly right. That 450°F heat rating gives me peace of mind during boiling.

Sebastian ★★★★★

Used a couple of these to replace old seals in a large pressure vessel, and they fit perfectly with no leaks. The red color made them easy to spot against the metal housing during assembly.

Daniel R. ★★★★★

The 18.475-inch inner diameter is exactly what I needed for a large food-grade tank seal, and the red color makes it easy to spot during maintenance. These fit perfectly and the 70 durometer feels sturdy but not too stiff.