Mutual Screw & Supply

0.139" CS X 7.484" ID Viton FKM O-Rings | AS568-266 | Dash 266 | 75 Durometer | Black (8 / Pkg.)

0.139" CS X 7.484" ID Viton FKM O-Rings | AS568-266 | Dash 266 | 75 Durometer | - Main image
$34.57 $51.6 In stock

Viton FKM o-rings in AS568-266, 7.484" inner diameter by 0.139" cross-section. Service range -15°F to +400°F (-26°C to +204°C). Also known as FKM, Fluoroelastomer.

Specifications

  • Product type: O-Ring
  • Material: Viton FKM
  • AS568 dash size: 266
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 7.484" (190.09 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 8 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 (4.8 / 5 · 5 reviews)

Timothy G. ★★★★★

Replaced the old cracked rubber seals on my air compressor head and these Viton rings dropped right in, no wrestling needed. The 7.484" ID is spot on for the groove, and they handle the constant 200°F heat cycles without going stiff.

William Y. ★★★★★

I needed a Dash 266 size for a high-temp pneumatic valve and these fit perfectly, the 75 durometer feels firm but not brittle. They seal well on the first try and I appreciate the 400°F rating for peace of mind.

Charlotte ★★★★★

Been running these o-rings on a hot oil system that cycles up to 350°F, and the Viton material holds up far better than the Buna-N ones I used before. The 75 durometer feels just firm enough to seal without being too stiff to install.