Mutual Screw & Supply

Buna-N Nitrile O-Rings | AS568-904 | Dash 904 | 90 Durometer (1300 / Pkg.)

Buna-N Nitrile O-Rings | AS568-904 | Dash 904 | 90 Durometer (1300 / Pkg.) - Main image
$33.7 $50.3 In stock

Buna-N Nitrile o-rings in AS568-904. 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: 904
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 1300 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 (5.0 / 5 · 5 reviews)

Lucy T. ★★★★★

These handled the -40°F range exactly as the spec sheet said, which was the main reason I picked them over cheaper options. Tore through a box of 1300 on a rebuild job without a single bad seal, and the 90 durometer feel gives me confidence they'll hold up under pressure.

Leo Y. ★★★★★

Installing a set of these dash 904 o-rings for a hydraulic line rebuild was straightforward, and the 90 durometer feels noticeably stiffer than the standard ones I've used. The temperature range down to -40°F gives me confidence for winter equipment operation.

Isabella S. ★★★★★

I've been using these o-rings to replace worn seals in a hydraulic system, and the -40°F to +250°F temperature range is exactly what I needed for outdoor equipment. They fit the groove perfectly and feel durable.