Mutual Screw & Supply

0.21" CS X 1.6" ID Viton FKM O-Rings | AS568-326 | Dash 326 | 75 Durometer | Brown (25 / Pkg.)

0.21" CS X 1.6" ID Viton FKM O-Rings | AS568-326 | Dash 326 | 75 Durometer | - Main image
$32.54 $52.48 In stock

Viton FKM o-rings in AS568-326, 1.6" inner diameter by 0.21" 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: 326
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.6" (40.64 mm)
  • Durometer: 75 Shore A
  • Color: Brown
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 25 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)

Olivia B. ★★★★★

I needed a high-temp seal for a steam line and these FKM rings tolerate up to 400°F, which is exactly why I picked them. The 1.6" inner diameter fit my fitting perfectly with no stretching hassle. They've been on for a week with zero leaks and the brown color makes them easy to spot during inspectio

Thomas M. ★★★★★

These are holding up perfectly under the constant 350°F heat near my boiler, which is exactly what I needed for that application. The 75 durometer feel is just firm enough without being brittle, and they fit the groove snugly.

Alexander ★★★★★

The brown color makes them easy to spot during assembly, and the 75 durometer feels firm but pliable enough to seat without tools. I’ve had these in a steam line at 350°F for two weeks now with zero leaks, which is more than I can say for the cheaper nitrile ones I tried before.