Mutual Screw & Supply

0.21" CS X 1.349" ID Buna-N Nitrile O-Rings | AS568-324 | Dash 324 | 90 Durometer (250 / Pkg.)

0.21" CS X 1.349" ID Buna-N Nitrile O-Rings | AS568-324 | Dash 324 | 90 - Main image
$43.98 $61.95 In stock

Buna-N Nitrile o-rings in AS568-324, 1.349" inner diameter by 0.21" cross-section. 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: 324
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.349" (34.26 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 250 per package
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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)

Amelia ★★★★★

The 90 durometer rating makes these o-rings noticeably firmer than standard ones, which worked perfectly for a high-pressure hydraulic fitting I repaired. With 250 in the pack, I’ve got plenty left for future projects.

Steven V. ★★★★★

These are the exact size I needed for a hydraulic fitting on my tractor. The 90 durometer feels plenty stiff and they seat firmly without deforming, and the pack of 250 means I’m set for a long while.

Victoria ★★★★★

Finally got around to replacing the old seals on my hydraulic cylinder and these compressed just right without splitting. The 90 durometer feels noticeably firmer than the standard ones I used before, which should hold up better under pressure.