Mutual Screw & Supply

0.139" CS X 0.734" ID Buna-N Nitrile O-Rings | AS568-210 | Dash 210 | Metal Detectable | 70 Durometer (75 / Pkg.)

0.139" CS X 0.734" ID Buna-N Nitrile O-Rings | AS568-210 | Dash 210 | Metal - Main image
$35.58 $55.59 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
  • 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
  • Metal detectable: Yes
  • Pack quantity: 75 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)

David L. ★★★★★

I needed a reliable seal for a pneumatic system that runs hot, and these o-rings handled the 200°F range without any issue. The 70 durometer is just firm enough for a snug fit but still easy to slide into place.

Hazel N. ★★★★★

These were a perfect fit for our pneumatic valves, and the blue color makes them easy to spot during assembly. The 70 durometer feels just right for our medium-pressure applications.

Ryan Z. ★★★★★

I work in food processing, and switching to these metal-detectable o-rings gives me real peace of mind—especially since they’re rated for up to 250°F. The 70 durometer feels nice and firm during installation, and the pack of 75 should last me several maintenance cycles.