Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-908 | Dash 908 | 90 Durometer (1000 / Pkg.)

Buna-N Nitrile O-Rings | AS568-908 | Dash 908 | 90 Durometer (1000 / Pkg.) - Main image
$35.39 $54.45 In stock

Buna-N Nitrile o-rings in AS568-908. 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: 908
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 1000 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)

Kevin ★★★★★

I’ve been using these 908 o-rings in a pneumatic setup that cycles constantly at 200°F, and the 90 durometer holds up perfectly without any swelling. The pack of 1000 covers multiple rebuilds.

Olivia R. ★★★★★

Needed a bulk stash of 908s for a hydraulic rebuild and these hit the spec dead-on, the -40°F to +250°F range gives me peace of mind for outdoor gear. A thousand rings in one box means I won't be reordering for a while, which is exactly the kind of headache I wanted to avoid.

Madison ★★★★★

The 90 durometer rating is exactly what I needed for a high-pressure hydraulic fitting that kept weeping with softer rings. These held up fine at 220°F in the hot oil circuit, and at a thousand per pack I won't be running out for a long time.