Mutual Screw & Supply

0.139" CS X 2.484" ID Buna-N Nitrile O-Rings | AS568-230 | Dash 230 | 70 Durometer | Black (300 / Pkg.)

0.139" CS X 2.484" ID Buna-N Nitrile O-Rings | AS568-230 | Dash 230 | 70 - Main image
$41.48 $62.85 In stock

Buna-N Nitrile o-rings in AS568-230, 2.484" inner diameter by 0.139" cross-section. Service range -40°F to +250°F (-40°C to +121°C). Also known as NBR, Buna-N, Chemigum, Hycar, Perbunan.

Specifications

  • Product type: O-Ring
  • Material: Buna-N Nitrile
  • AS568 dash size: 230
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 2.484" (63.09 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 300 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 (5.0 / 5 · 5 reviews)

Edward ★★★★★

These arrived quickly and the 70 durometer hardness is exactly what I needed for a snug fit on the 2.484" bore. I've used a few for a hydraulic repair so far and they seated perfectly without any deformation.

Sofia B. ★★★★★

The 0.139" cross-section is nice and uniform across all 300 rings, so they seated evenly when I pressed them into the gland. They've held up fine at around 200°F in my hydraulic setup, no swelling or hardening yet after a few weeks.

James ★★★★★

The -40°F to +250°F service range is exactly what I needed for my outdoor hydraulic setup, and the bag of 300 means I won't be reordering anytime soon. The 70 durometer feels firm but not brittle, and they seated into the grooves without any fighting.