Mutual Screw & Supply

0.139" CS X 1.859" ID Buna-N Nitrile O-Rings | AS568-225 | Dash 225 | 70 Durometer | Black (400 / Pkg.)

0.139" CS X 1.859" ID Buna-N Nitrile O-Rings | AS568-225 | Dash 225 | 70 - Main image
$41.54 $61.09 In stock

Buna-N Nitrile o-rings in AS568-225, 1.859" inner diameter by 0.139" 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: 225
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.859" (47.22 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 400 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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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)

Michael ★★★★★

I needed a bulk pack for a pneumatic rebuild project, and the 70 durometer hardness is just right—not too stiff to seal, not too soft to deform. The -40°F rating gives me peace of mind for winter use too.

Grace A. ★★★★★

These fit perfectly on my hydraulic cylinder rebuild and the 70 durometer stiffness is just right to hold pressure without being impossible to seat. Worked great from the freezer to the shop floor without any cracking.

Ruby Z. ★★★★★

The 70 durometer hardness is exactly what I needed for a consistent seal on some hydraulic fittings. These rings fit perfectly and the pack of 400 should last me through a bunch of projects. No complaints at all.