Mutual Screw & Supply

0.139" CS X 4.234" ID HNBR O-Rings | AS568-244 | Dash 244 | 80 Durometer (14 / Pkg.)

0.139" CS X 4.234" ID HNBR O-Rings | AS568-244 | Dash 244 | 80 Durometer (14 / - Main image
$33.1 $54.26 In stock

HNBR o-rings in AS568-244, 4.234" inner diameter by 0.139" cross-section. Service range -40°F to +300°F (-40°C to +149°C). Also known as HSN, Highly Saturated Nitrile.

Specifications

  • Product type: O-Ring
  • Material: HNBR
  • AS568 dash size: 244
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 4.234" (107.54 mm)
  • Durometer: 80 Shore A
  • Temperature range: -40°F to +300°F (-40°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 14 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)

Ella ★★★★★

The 4.234-inch inner diameter fit perfectly into my hydraulic coupling where standard nitrile would have failed from heat. These are holding up well at around 250°F so far, and the 80 durometer gives just the right feel.

Lily ★★★★★

I’ve been using these HNBR o-rings in a high-temp sealing application, and the 80 durometer holds up perfectly without any noticeable wear after a month of cycling up to 300°F. The 4.234" inner diameter fit my flange exactly, which saved me from having to order custom sizes. Great value for the pack

Eli ★★★★★

I needed a replacement for a hydraulic seal that kept leaking, and these HNBR o-rings with a 4.234" ID fit perfectly and stopped the drip. The 80 durometer feels firm yet pliable, and they've held up well through temperature swings.