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Buna-N Nitrile O-Rings | AS568-409 | Dash 409 | 70 Durometer | Black (50 / Pkg.)

Buna-N Nitrile O-Rings | AS568-409 | Dash 409 | 70 Durometer | Black (50 / Pkg.) - Main image
$36.44 $51.33 In stock

Buna-N Nitrile o-rings in AS568-409. 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: 409
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 50 per package
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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 (4.8 / 5 · 5 reviews)

Hannah T. ★★★★★

I needed to replace worn seals on an old hydraulic cylinder, and these AS568-409 rings slid into the groove perfectly. The 70 durometer material seated tight without being overly stiff, and the pack of 50 should last me through several more repairs.

Sofia ★★★★★

The 70 durometer feels exactly right for the pressure fittings I'm repairing, and the -40°F rating gives me confidence for outdoor use. These fit the AS568-409 groove perfectly, no guesswork.

Lily M. ★★★★★

These o-rings handled the heat from my engine bay without any issues. The 70 durometer feels firm but seals nicely against the fittings.