Mutual Screw & Supply

0.139" CS X 0.609" ID Buna-N Nitrile O-Rings | AS568-208 | Dash 208 | 90 Durometer (700 / Pkg.)

0.139" CS X 0.609" ID Buna-N Nitrile O-Rings | AS568-208 | Dash 208 | 90 - Main image
$36.05 $57.22 In stock

Buna-N Nitrile o-rings in AS568-208, 0.609" 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: 208
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.609" (15.47 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 700 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 (5.0 / 5 · 5 reviews)

Avery ★★★★★

These are exactly the right size for my hydraulic fittings, and the 90 durometer means they don't squish out of shape when I torque things down. The -40°F rating gives me peace of mind for my outdoor equipment during the winter.

Eva C. ★★★★★

The 90 durometer feels much firmer than standard o-rings, and the 0.139" cross-section gives a solid seal that doesn't squish out under pressure. I put them in a hot oil line around 200°F and so far no leaks or deformation.

Sofia ★★★★★

I needed something that could handle higher heat near the engine, and these 90-durometer o-rings are working perfectly. The package of seven hundred is incredible value for a fleet maintenance job.