Mutual Screw & Supply

0.139" CS X 1.421" ID Viton FKM O-Rings | AS568-221 | Dash 221 | 75 Durometer | Brown (60 / Pkg.)

0.139" CS X 1.421" ID Viton FKM O-Rings | AS568-221 | Dash 221 | 75 Durometer | - Main image
$39.59 $52.78 In stock

Viton FKM o-rings in AS568-221, 1.421" 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: 221
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.421" (36.09 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 60 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)

Harper J. ★★★★★

For a high-temp fuel line repair on an old diesel engine, these Viton O-rings have held up perfectly under continuous 300°F heat. The 75 durometer hardness seals tight without being too stiff to install.

Miles ★★★★★

I've been running these o-rings in a high-temp hydraulic application and they hold up perfectly at over 200°F. The 75 durometer gives just the right firmness without being brittle.

Brian ★★★★★

Finally found a reliable seal for my 400°F oven door that doesn't degrade, the Viton material holds up perfectly under that heat. The 1.421" ID fit snugly without needing to stretch too much.