Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-408 | Dash 408 | 70 Durometer | Black (55 / Pkg.)

Buna-N Nitrile O-Rings | AS568-408 | Dash 408 | 70 Durometer | Black (55 / Pkg.) - Main image
$40.5 $54 In stock

Buna-N Nitrile o-rings in AS568-408. 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: 408
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 55 per package
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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Andrew E. ★★★★★

I bought these nitrile o-rings for an old valve repair, and the rubber feels durable without being too stiff. They fit perfectly on the AS568-408 groove and sealed right away. Exactly what I needed for a fair price.

Ruby ★★★★★

The 70 durometer hardness was exactly what I needed for my hydraulic repair job, and they fit snugly without any fuss. Pack came with more than enough spares for the price.

Matthew Z. ★★★★★

These o-rings fit perfectly on the hydraulic fitting I was repairing, and the 70 durometer feels like the right balance of firmness and flexibility. The pack of 55 is plenty for future projects too.