Mutual Screw & Supply

0.139" CS X 0.734" ID Buna-N Nitrile O-Rings | AS568-210 | Dash 210 | X-Ring | 70 Durometer (300 / Pkg.)

0.139" CS X 0.734" ID Buna-N Nitrile O-Rings | AS568-210 | Dash 210 | X-Ring | - Main image
$37.08 $50.8 In stock

Buna-N Nitrile o-rings in AS568-210, 0.734" 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 (X-Ring)
  • Material: Buna-N Nitrile
  • AS568 dash size: 210
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.734" (18.64 mm)
  • Durometer: 70 Shore A
  • 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)

Ryan ★★★★★

Just sealed a small hydraulic leak on my log splitter and the -40°F rating gives me peace of mind for winter storage. The 0.734" ID snapped in perfectly without any wrestling, and at 70 durometer they've got enough give to seat well but still hold firm.

Robert P. ★★★★★

The 70 durometer felt just right for my hydraulic repair—snug fit without being impossible to seat. Nice that they handle up to 250°F since my application gets hot. Pack of 300 will last me years.

Stella ★★★★★

The cross-section is noticeably thicker than the standard rings I've used before, so these seated perfectly in the groove without any rolling. I've run them up to 200°F in a hot oil application and they haven't hardened or cracked after two weeks.