Mutual Screw & Supply

0.21" CS X 19.475" ID Silicone O-Rings | AS568-392 | Dash 392 | FDA Compliant | 70 Durometer | Red (4 / Pkg.)

0.21" CS X 19.475" ID Silicone O-Rings | AS568-392 | Dash 392 | FDA Compliant | - Main image
$33.86 $51.3 In stock

Silicone o-rings in AS568-392, 19.475" 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: 392
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 19.475" (494.67 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: 4 per package
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

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

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

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Lucy D. ★★★★★

I’ve been using these o-rings for a high-heat application, handling up to 450°F without any softening. They slipped into the groove easily, and the 70 durometer gives a great seal that holds pressure well.

William L. ★★★★★

The 70 durometer feels just right for my steam table gasket—firm enough to seal but still pliable. These red silicone rings handled the 400°F preheat cycle without any degradation. Exactly what I needed for that high-temp application.

George ★★★★★

I needed a precise 19.475" ID ring for a high-temp process line, and these fit perfectly without any stretching or binding. The red color makes them easy to spot during maintenance checks, and they've held up well under constant 300°F exposure.