Mutual Screw & Supply

0.139" CS X 0.671" ID Silicone O-Rings | AS568-209 | Dash 209 | 70 Durometer | Red (1000 / Pkg.)

0.139" CS X 0.671" ID Silicone O-Rings | AS568-209 | Dash 209 | 70 Durometer | - Main image
$66.31 $96.1 In stock

Silicone o-rings in AS568-209, 0.671" 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: 209
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.671" (17.04 mm)
  • Durometer: 70 Shore A
  • Color: Red
  • Temperature range: -80°F to +450°F (-62°C to +232°C)
  • Measurement type: Imperial
  • Pack quantity: 1000 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 (4.6 / 5 · 5 reviews)

Scarlett T. ★★★★★

These red silicone o-rings fit perfectly into my vacuum fixture, and the 70 durometer gives them just the right amount of firmness without being too hard to seat. I've been running them at around 400°F and they haven't degraded at all after several cycles.

Eva ★★★★★

These red silicone o-rings were exactly what I needed for a high-temp seal application. The -80°F to +450°F service range gives me confidence they’ll hold up where standard rubber would fail.

Sophia O. ★★★★★

I needed o-rings that could handle both extreme heat and cold, and these silicone ones with a 70 durometer have been flawless so far. The 0.671" inner diameter was exactly what my assembly required, no slipping or deformation after several cycles.