Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-449 | Dash 449 | 70 Durometer | Black (16 / Pkg.)

Buna-N Nitrile O-Rings | AS568-449 | Dash 449 | 70 Durometer | Black (16 / Pkg.) - Main image
$36.65 $53.11 In stock

Buna-N Nitrile o-rings in AS568-449. 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: 449
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 16 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 (4.8 / 5 · 5 reviews)

Joseph W. ★★★★★

These o-rings sealed my pressure washer pump on the first try with no leaks at all. The 70 durometer material feels sturdy, and the -40°F rating gives me confidence for winter jobs.

Alexander Z. ★★★★★

Fit perfectly on my hydraulic cylinder and the -40°F lower temp rating gives me peace of mind for outdoor equipment. The bag of 16 will last me through several repairs.

Claire ★★★★★

Was skeptical about the 70 durometer being stiff enough for my application, but they seal perfectly on a hydraulic fitting that sees up to 120°F. No leaks after a week of daily use.